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dangina [55]
3 years ago
7

Is the ratio 4.2:1.5 proportional to the ratio12.6:4.5? Explain.

Mathematics
2 answers:
fenix001 [56]3 years ago
7 0

Answer:

Yes, the ratio is proportional

Step-by-step explanation:

given 4.2 : 1.5 =? 12.6 : 4.5 is it proportional

it must follow the means extremes property

\frac{a}{b} = \frac{c}{d}

a*d = b*c, so let's plug in the values

\frac{4.2}{1.5} =? \frac{12.4}{4.5}

(4.2)*(4.5) =? (1.5)*(12.6)

18.9 = 18.9 which is true; therefore the ratio is proportional

mote1985 [20]3 years ago
6 0

Answer:

No

Step-by-step explanation:

All the numbers have to be multiplied by the same amount for it to be proportional

A proportional amount to 4:2:1:5 would be 12:6:3:15

They have all been multiplied by the same number 3

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