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Finding the Fourth Proportional to 31,357.92, 47,101.92 and 25,360.74

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Solution

The fourth proportional to 31,357.92, 47,101.92 and 25,360.74 is: 38,093.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,357.92 : 47,101.92 = 25,360.74 : x
  2. Step 2: Convert to fraction form
    31,357.92/47,101.92 = 25,360.74/x
  3. Step 3: Cross multiply
    31,357.92x = 47,101.92 × 25,360.74
  4. Step 4: Simplify right side
    31,357.92x = 1,194,539,546.62
  5. Step 5: Solve for x
    x = 1,194,539,546.62/31,357.92
  6. Step 6: Final answer
    x = 38,093.71

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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.