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41 votes
41 votes
Find the missing number in the proportion.

Find the missing number in the proportion.-example-1
User Stefano Amorelli
by
3.0k points

1 Answer

19 votes
19 votes

Answer: 7

Step-by-step explanation: Cross multiply, so 15 times x and 21 times 5. 21 times 5 is 105 then you divide by 15 which gives you 7.

User Sean Chou
by
2.7k points
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