The first, third and the fourth term of a proportion are 5, 7 and 42. Find the second term of the proportional
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Answer:
5:x::7:42
7x = 42*5
x = 42*5/7 = 30
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ᴛʜᴇ sᴇᴄᴏɴᴅ ᴛᴇʀᴍ ɪs '30'
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