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Finding the Third Proportional to 18,776 and 27,282

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Solution

The third proportional to 18,776 and 27,282 is: 39,641.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776 : 27,282 = 27,282 : x
  2. Step 2: Convert to fraction form
    18,776/27,282 = 27,282/x
  3. Step 3: Cross multiply
    18,776x = 27,282 × 27,282
  4. Step 4: Simplify right side
    18,776x = 744,307,524
  5. Step 5: Solve for x
    x = 744,307,524/18,776
  6. Step 6: Final answer
    x = 39,641.43

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.