Question

The ratio of 1.3 to 32 is the same as the ratio of 3.9 to

Answer 1

Answer:

The ratio of 1.3 to 32 is the same as the ratio of 3.9 to 96

Explanation:

The ratio of 1.3 to 32 is

$\frac{1.3}{32}$

which must be the same as

$\frac{3.9}{\text{Unkown Number}}$

Therefore, we have

$\frac{1.3}{32}=\frac{3.9}{\text{Unkown Number}}$

Now, cross multiplication gives

$1.3(\text{Unkown Number) =32}\cdot3.9$

Finally, dividing both sides by 1.3 gives

$\text{Unkown Number =}\frac{32\cdot3.9}{1.3}$

which simplifies to give

$\boxed{\text{Unkown Number =}96}$

which is our answer!