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Finding the Third Proportional to 3,633.50 and 7,691

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Solution

The third proportional to 3,633.50 and 7,691 is: 16,279.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,633.50 : 7,691 = 7,691 : x
  2. Step 2: Convert to fraction form
    3,633.50/7,691 = 7,691/x
  3. Step 3: Cross multiply
    3,633.50x = 7,691 × 7,691
  4. Step 4: Simplify right side
    3,633.50x = 59,151,481
  5. Step 5: Solve for x
    x = 59,151,481/3,633.50
  6. Step 6: Final answer
    x = 16,279.48

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.