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Finding the Third Proportional to 54,792 and 85,608

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Solution

The third proportional to 54,792 and 85,608 is: 133,755.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,792 : 85,608 = 85,608 : x
  2. Step 2: Convert to fraction form
    54,792/85,608 = 85,608/x
  3. Step 3: Cross multiply
    54,792x = 85,608 × 85,608
  4. Step 4: Simplify right side
    54,792x = 7,328,729,664
  5. Step 5: Solve for x
    x = 7,328,729,664/54,792
  6. Step 6: Final answer
    x = 133,755.47

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.