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Finding the Fourth Proportional to 57,489.63, 86,234.47 and 25,862.75

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Solution

The fourth proportional to 57,489.63, 86,234.47 and 25,862.75 is: 38,794.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,489.63 : 86,234.47 = 25,862.75 : x
  2. Step 2: Convert to fraction form
    57,489.63/86,234.47 = 25,862.75/x
  3. Step 3: Cross multiply
    57,489.63x = 86,234.47 × 25,862.75
  4. Step 4: Simplify right side
    57,489.63x = 2,230,260,538.99
  5. Step 5: Solve for x
    x = 2,230,260,538.99/57,489.63
  6. Step 6: Final answer
    x = 38,794.14

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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.