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Finding the Fourth Proportional to 61,129.19, 91,726.90 and 25,593.65

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Solution

The fourth proportional to 61,129.19, 91,726.90 and 25,593.65 is: 38,404.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,129.19 : 91,726.90 = 25,593.65 : x
  2. Step 2: Convert to fraction form
    61,129.19/91,726.90 = 25,593.65/x
  3. Step 3: Cross multiply
    61,129.19x = 91,726.90 × 25,593.65
  4. Step 4: Simplify right side
    61,129.19x = 2,347,625,995.54
  5. Step 5: Solve for x
    x = 2,347,625,995.54/61,129.19
  6. Step 6: Final answer
    x = 38,404.34

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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.