The percent problem "45% of 60 is what number" can be translated into a proportion as follows:

$\frac{45}{100} = \frac{x}{60}$

Here, $x$ represents the unknown number you are trying to find.

Would you like to see how this proportion can be solved or have any other questions?

Here are five related questions:

1. How do you solve the proportion to find the value of $x$?
2. What is the percentage formula for solving these types of problems?
3. How do you convert a percentage to a fraction?
4. What is another example of a percent problem that can be translated into a proportion?
5. How can you check your answer once you find $x$?

Tip: When translating a percent problem into a proportion, always remember that the percent can be expressed as a fraction with 100 in the denominator.