What is 9

What is the value of x in the proportion 2 and one-fourth over x = 1 and one-half over 3 and three-fifths?

2 and two-fifths
5 and two-fifths
8 and 1 over 10
12 and 3 over 20

Correct answer:

x =  5.4

Step-by-step explanation:

214x=112335  a=214=2+14=2 4+14=94=2.25 b=112=1+12=1 2+12=32=1.5 c=335=3+35=3 5+35=185=3.6  ax=bc  x=a cb=2.25 3.61.5=275=525=5.4

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