Chapter 6.2, Problem 21E

To determine

To solve the proportion by using algebra.

Answer to Problem 21E

The solution of the given proportion is $c=5$ .

Explanation of Solution

Given information : the proportion is given as,

  $\frac{25}{60}=\frac{c}{12}$

Calculation : the given proportion can be calculated as,

  $\begin{array}{l}\frac{25}{60}=\frac{c}{12}\\ \frac{25}{60}\cdot 12=\frac{c}{12}\cdot 12\left[\text{multiply each side by 12}\right]\\ c=\frac{300}{60}\left[\text{simplify}\right]\\ c=5\left[\text{divide}\right]\end{array}$

Therefore,

The solution of the given proportion is $c=5$ .