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Finding the Third Proportional to 28,780 and 38,882

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Solution

The third proportional to 28,780 and 38,882 is: 52,529.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780 : 38,882 = 38,882 : x
  2. Step 2: Convert to fraction form
    28,780/38,882 = 38,882/x
  3. Step 3: Cross multiply
    28,780x = 38,882 × 38,882
  4. Step 4: Simplify right side
    28,780x = 1,511,809,924
  5. Step 5: Solve for x
    x = 1,511,809,924/28,780
  6. Step 6: Final answer
    x = 52,529.88

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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.