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Finding the Third Proportional to 57,374 and 77,292

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Solution

The third proportional to 57,374 and 77,292 is: 104,124.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,374 : 77,292 = 77,292 : x
  2. Step 2: Convert to fraction form
    57,374/77,292 = 77,292/x
  3. Step 3: Cross multiply
    57,374x = 77,292 × 77,292
  4. Step 4: Simplify right side
    57,374x = 5,974,053,264
  5. Step 5: Solve for x
    x = 5,974,053,264/57,374
  6. Step 6: Final answer
    x = 104,124.75

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.