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Finding the Third Proportional to 28,520 and 63,591

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Solution

The third proportional to 28,520 and 63,591 is: 141,788.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,520 : 63,591 = 63,591 : x
  2. Step 2: Convert to fraction form
    28,520/63,591 = 63,591/x
  3. Step 3: Cross multiply
    28,520x = 63,591 × 63,591
  4. Step 4: Simplify right side
    28,520x = 4,043,815,281
  5. Step 5: Solve for x
    x = 4,043,815,281/28,520
  6. Step 6: Final answer
    x = 141,788.75

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.