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Finding the Fourth Proportional to 57,387.95, 86,086.88 and 15,834.95

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Solution

The fourth proportional to 57,387.95, 86,086.88 and 15,834.95 is: 23,753.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,387.95 : 86,086.88 = 15,834.95 : x
  2. Step 2: Convert to fraction form
    57,387.95/86,086.88 = 15,834.95/x
  3. Step 3: Cross multiply
    57,387.95x = 86,086.88 × 15,834.95
  4. Step 4: Simplify right side
    57,387.95x = 1,363,180,930.85
  5. Step 5: Solve for x
    x = 1,363,180,930.85/57,387.95
  6. Step 6: Final answer
    x = 23,753.79

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1.5x scale

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.