The solution of the given proportion.The given proportion is: \frac{3}{8}=\frac{15}{a}

The solution of the given proportion.
The given proportion is: $\frac{3}{8}=\frac{15}{a}$
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Calculation:
The given ratios can be simplified further by doing cross product:
$\frac{3}{8}=\frac{15}{a}$
$3\left(a\right)=15\left(8\right)$
$3a=120$
$\frac{3a}{3}=\frac{120}{3}$
$a=40$