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Finding the Fourth Proportional to 61,229.66, 91,879.94 and 25,687.82

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Solution

The fourth proportional to 61,229.66, 91,879.94 and 25,687.82 is: 38,546.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,229.66 : 91,879.94 = 25,687.82 : x
  2. Step 2: Convert to fraction form
    61,229.66/91,879.94 = 25,687.82/x
  3. Step 3: Cross multiply
    61,229.66x = 91,879.94 × 25,687.82
  4. Step 4: Simplify right side
    61,229.66x = 2,360,195,654.25
  5. Step 5: Solve for x
    x = 2,360,195,654.25/61,229.66
  6. Step 6: Final answer
    x = 38,546.61

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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.