Which of the following numbers are not in proportion?
(28,44,42,66); (6,7,30,36)
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Step-by-step explanation:
proportion means
product of means = product of extremes
(28,44,42,66)
product of means = product of extremes
44×42 =28×66
1848 = 1848 (proportion)
(6,7,30,36)
product of means = product of extremes
7×30 = 6×36
210 = 216(not proportion)
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