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Finding the Third Proportional to 28,620 and 62,949

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Solution

The third proportional to 28,620 and 62,949 is: 138,454.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620 : 62,949 = 62,949 : x
  2. Step 2: Convert to fraction form
    28,620/62,949 = 62,949/x
  3. Step 3: Cross multiply
    28,620x = 62,949 × 62,949
  4. Step 4: Simplify right side
    28,620x = 3,962,576,601
  5. Step 5: Solve for x
    x = 3,962,576,601/28,620
  6. Step 6: Final answer
    x = 138,454.81

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.