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Finding the Third Proportional to 15,418.88 and 23,128.13

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Solution

The third proportional to 15,418.88 and 23,128.13 is: 34,691.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.88 : 23,128.13 = 23,128.13 : x
  2. Step 2: Convert to fraction form
    15,418.88/23,128.13 = 23,128.13/x
  3. Step 3: Cross multiply
    15,418.88x = 23,128.13 × 23,128.13
  4. Step 4: Simplify right side
    15,418.88x = 534,910,166.02
  5. Step 5: Solve for x
    x = 534,910,166.02/15,418.88
  6. Step 6: Final answer
    x = 34,691.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.