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Finding the Fourth Proportional to 57,387.45, 86,086.13 and 15,834.45

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Solution

The fourth proportional to 57,387.45, 86,086.13 and 15,834.45 is: 23,753.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,387.45 : 86,086.13 = 15,834.45 : x
  2. Step 2: Convert to fraction form
    57,387.45/86,086.13 = 15,834.45/x
  3. Step 3: Cross multiply
    57,387.45x = 86,086.13 × 15,834.45
  4. Step 4: Simplify right side
    57,387.45x = 1,363,126,521.18
  5. Step 5: Solve for x
    x = 1,363,126,521.18/57,387.45
  6. Step 6: Final answer
    x = 23,753.04

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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.