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Finding the Third Proportional to 13,691.75 and 29,429.75

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Solution

The third proportional to 13,691.75 and 29,429.75 is: 63,257.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,691.75 : 29,429.75 = 29,429.75 : x
  2. Step 2: Convert to fraction form
    13,691.75/29,429.75 = 29,429.75/x
  3. Step 3: Cross multiply
    13,691.75x = 29,429.75 × 29,429.75
  4. Step 4: Simplify right side
    13,691.75x = 866,110,185.06
  5. Step 5: Solve for x
    x = 866,110,185.06/13,691.75
  6. Step 6: Final answer
    x = 63,257.81

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.