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Finding the Fourth Proportional to 38,565.60, 57,817.80 and 25,321.20

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Solution

The fourth proportional to 38,565.60, 57,817.80 and 25,321.20 is: 37,961.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,565.60 : 57,817.80 = 25,321.20 : x
  2. Step 2: Convert to fraction form
    38,565.60/57,817.80 = 25,321.20/x
  3. Step 3: Cross multiply
    38,565.60x = 57,817.80 × 25,321.20
  4. Step 4: Simplify right side
    38,565.60x = 1,464,016,077.36
  5. Step 5: Solve for x
    x = 1,464,016,077.36/38,565.60
  6. Step 6: Final answer
    x = 37,961.71

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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.