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Finding the Third Proportional to 18,776 and 40,651

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Solution

The third proportional to 18,776 and 40,651 is: 88,011.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776 : 40,651 = 40,651 : x
  2. Step 2: Convert to fraction form
    18,776/40,651 = 40,651/x
  3. Step 3: Cross multiply
    18,776x = 40,651 × 40,651
  4. Step 4: Simplify right side
    18,776x = 1,652,503,801
  5. Step 5: Solve for x
    x = 1,652,503,801/18,776
  6. Step 6: Final answer
    x = 88,011.49

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.