To form a proportion based on the given ratio of Motor Vehicle Deaths (MVD) for Country A to its total population, let's follow these steps:

1. Let $x$ be the total population of Country A.

2. The ratio of MVD to the total population can be expressed as: $\frac{\text{MVD for Country A}}{x}$

3. The given MVD rate is usually expressed per 100,000 people. This means that the proportion for MVD per 100,000 people will be: $\frac{\text{MVD for Country A}}{x} = \frac{\text{MVD per 100,000 people}}{100,000}$

4. Now, cross-multiply to solve for $x$ (the total population): $\text{MVD for Country A} \times 100,000 = \text{MVD per 100,000 people} \times x$ $x = \frac{\text{MVD for Country A} \times 100,000}{\text{MVD per 100,000 people}}$

In this equation, you would plug in the given MVD data to calculate the total population $x$.

Example:

If you are given that:

• MVD for Country A = 500 deaths
• MVD per 100,000 people = 25 deaths

The proportion would be: $\frac{500}{x} = \frac{25}{100,000}$ Cross-multiply: $500 \times 100,000 = 25 \times x$ $50,000,000 = 25x$ $x = \frac{50,000,000}{25} = 2,000,000$ So, the total population $x$ is 2,000,000 people.

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Do you want more details on this process or any clarifications?

Related Questions:

1. How do you solve proportions involving more complex rates?
2. What if the MVD rate is given in a different unit, like per 1,000 people?
3. How would this formula change if you are calculating a different country's data?
4. Can this method be applied to different types of mortality data, like heart disease or cancer?
5. What is the interpretation of MVD per 100,000 people, and why is it useful?

Tip: Always double-check the units when setting up a proportion to avoid calculation mistakes!