Question

determine whether the following numbers are in proportion or not 1/3,1/8,1/5,1/9

Answer 1

No these numbers are not in proportional.
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Answer 2

first convert them in ratio

1/3,1/8,1/5,1/9      The LCM  is 360

1/3*360=120

1/8*360=45

1/5*360=30

1/9* 360=40

∴ 120:45:30:40

⇒120*40=45*30 [prroduct of the extream =product of the mean]

⇒4800 ≠ 1350 [LHS is not equal to RHS so they are not in proportion ]

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