Chapter CSB, Problem 1.7E

To determine

To check:whether thegiven pairs of ratios forms a proportion.

Answer to Problem 1.7E

Yes.

Explanation of Solution

Given:

The given pairs of ratios are $\frac{4}{11},\frac{12}{33}$ .

Calculation:

As the given pairs of ratios are $\frac{4}{11},\frac{12}{33}$ .

Now, to find the factor of the ratio so that to check that each proportion is same or not. Therefore,

  $\begin{array}{l}\frac{4}{11}=\frac{2\times 2}{11}\left\{no\text{factor}\right\}\\ \frac{12}{33}=\frac{2\times 2\times 3}{11\times 3}=\frac{4}{11}\{\text{factor}}\end{array}$

Thus, the factor of each proportion issame.

Yes, the given pairs of ratios form a proportion.