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

User Gchtr
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4 votes

Answer:

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

Step-by-step explanation:

The ratio of 1.3 to 32 is


(1.3)/(32)

which must be the same as


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

Therefore, we have


(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 =}(32\cdot3.9)/(1.3)

which simplifies to give


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

which is our answer!

User Frank Conry
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