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Finding the Third Proportional to 60,702 and 91,902

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Solution

The third proportional to 60,702 and 91,902 is: 139,138.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,702 : 91,902 = 91,902 : x
  2. Step 2: Convert to fraction form
    60,702/91,902 = 91,902/x
  3. Step 3: Cross multiply
    60,702x = 91,902 × 91,902
  4. Step 4: Simplify right side
    60,702x = 8,445,977,604
  5. Step 5: Solve for x
    x = 8,445,977,604/60,702
  6. Step 6: Final answer
    x = 139,138.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.