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Finding the Third Proportional to 62,612 and 81,282

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Solution

The third proportional to 62,612 and 81,282 is: 105,519.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,612 : 81,282 = 81,282 : x
  2. Step 2: Convert to fraction form
    62,612/81,282 = 81,282/x
  3. Step 3: Cross multiply
    62,612x = 81,282 × 81,282
  4. Step 4: Simplify right side
    62,612x = 6,606,763,524
  5. Step 5: Solve for x
    x = 6,606,763,524/62,612
  6. Step 6: Final answer
    x = 105,519.13

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.