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Finding the Third Proportional to 28,008 and 61,605

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Solution

The third proportional to 28,008 and 61,605 is: 135,503.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008 : 61,605 = 61,605 : x
  2. Step 2: Convert to fraction form
    28,008/61,605 = 61,605/x
  3. Step 3: Cross multiply
    28,008x = 61,605 × 61,605
  4. Step 4: Simplify right side
    28,008x = 3,795,176,025
  5. Step 5: Solve for x
    x = 3,795,176,025/28,008
  6. Step 6: Final answer
    x = 135,503.29

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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.