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Finding the Fourth Proportional to 57,043.71, 85,565.70 and 25,445.61

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Solution

The fourth proportional to 57,043.71, 85,565.70 and 25,445.61 is: 38,168.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,043.71 : 85,565.70 = 25,445.61 : x
  2. Step 2: Convert to fraction form
    57,043.71/85,565.70 = 25,445.61/x
  3. Step 3: Cross multiply
    57,043.71x = 85,565.70 × 25,445.61
  4. Step 4: Simplify right side
    57,043.71x = 2,177,271,431.58
  5. Step 5: Solve for x
    x = 2,177,271,431.58/57,043.71
  6. Step 6: Final answer
    x = 38,168.48

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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.