Math Problem Statement

The points V, W, X and Y all lie on the same line segment, in that order, such that the ratio of V, W, colon, W, X, colon, X, YVW:WX:XY is equal to 5, colon, 3, colon, 3, .5:3:3. If V, Y, equals, 33, commaVY=33, find W, X, .WX

Solution

We are given that the points VV, WW, XX, and YY lie on the same line segment, and the ratio of the distances VW:WX:XYVW:WX:XY is 5:3:3. We also know that the total distance VY=33VY = 33, and we are asked to find WXWX.

Step-by-Step Solution

  1. Let the distances be proportional to the given ratio: Since the ratio of the segments VW:WX:XY=5:3:3VW:WX:XY = 5:3:3, we can express each segment as multiples of some common factor kk. That is: VW=5k,WX=3k,XY=3kVW = 5k, \quad WX = 3k, \quad XY = 3k

  2. Use the total distance VYVY: The total distance VYVY is the sum of VWVW, WXWX, and XYXY: VY=VW+WX+XYVY = VW + WX + XY Substituting the expressions for VWVW, WXWX, and XYXY: 33=5k+3k+3k33 = 5k + 3k + 3k Simplifying: 33=11k33 = 11k Solving for kk: k=3311=3k = \frac{33}{11} = 3

  3. Find WXWX: Now that we know k=3k = 3, we can find WXWX by substituting kk into the expression for WXWX: WX=3k=3(3)=9WX = 3k = 3(3) = 9

Thus, the length of WXWX is 9\boxed{9}.

Would you like more details or have any questions? Here are some related questions:

  1. What is the length of VWVW?
  2. What is the length of XYXY?
  3. How do we verify the total length of VYVY after finding kk?
  4. If WXWX were instead in the ratio 4:3:5, how would the solution change?
  5. What is the importance of proportionality in geometric problems involving line segments?

Tip: When dealing with ratios, always express unknown lengths in terms of a common variable for easier calculation!

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Math Problem Analysis

Mathematical Concepts

Ratios
Proportionality
Linear Segments

Formulas

VW:WX:XY = 5k:3k:3k
VY = VW + WX + XY
k = Total Distance / Sum of Ratios

Theorems

Proportionality Theorem

Suitable Grade Level

Grades 6-8