Chapter CSB, Problem 1.15E

To determine

To solve:thegiven proportion.

Answer to Problem 1.15E

  $x=\frac{7}{5}$ .

Explanation of Solution

Given:

The given proportion are $\frac{7}{45}=\frac{x}{9}$ .

Calculation:

As the given proportion are $\frac{7}{45}=\frac{x}{9}$ .

Now, solved the given equation,

  $\begin{array}{l}\frac{7}{45}=\frac{x}{9}\left\{\text{given proportion}\right\}\\ x\times 45=9\times 7\{\text{cross-multiplication}}\\ \therefore x=\frac{9\times 7}{45}\{\text{divide both sides by 45}}\\ \Rightarrow x=\frac{7}{5}\{\text{simplify}}\end{array}$

Hence, the solution of the given solution is $x=\frac{7}{5}$ .