find the value of a b c and d so that the following are in proportion a, 30, 40, 60
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30,40,60
30,40,40,60
product of extreme= 30×60=1800
product of means= 40×40=1600
so 30,40,40,60 are not in proportion
please mark me as brainlest
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maybe your question is wrong bcz this is only way doing it but probably the answer is coming wrong........I did whatever I could please mark me as the brainliest
Step-by-step explanation:
a:30::40:60
Product of means = product of extremes
30×40=60×a
60a=120
a=120/60
a=2
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