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Finding the Fourth Proportional to 57,354.81, 86,060.37 and 25,787.15

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Solution

The fourth proportional to 57,354.81, 86,060.37 and 25,787.15 is: 38,693.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,354.81 : 86,060.37 = 25,787.15 : x
  2. Step 2: Convert to fraction form
    57,354.81/86,060.37 = 25,787.15/x
  3. Step 3: Cross multiply
    57,354.81x = 86,060.37 × 25,787.15
  4. Step 4: Simplify right side
    57,354.81x = 2,219,251,239.94
  5. Step 5: Solve for x
    x = 2,219,251,239.94/57,354.81
  6. Step 6: Final answer
    x = 38,693.38

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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.