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Finding the Third Proportional to 12,575.25 and 16,129.13

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Solution

The third proportional to 12,575.25 and 16,129.13 is: 20,687.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,575.25 : 16,129.13 = 16,129.13 : x
  2. Step 2: Convert to fraction form
    12,575.25/16,129.13 = 16,129.13/x
  3. Step 3: Cross multiply
    12,575.25x = 16,129.13 × 16,129.13
  4. Step 4: Simplify right side
    12,575.25x = 260,148,673.27
  5. Step 5: Solve for x
    x = 260,148,673.27/12,575.25
  6. Step 6: Final answer
    x = 20,687.36

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.