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Finding the Fourth Proportional to 26,777.52, 40,142.52 and 10,125.90

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Solution

The fourth proportional to 26,777.52, 40,142.52 and 10,125.90 is: 15,179.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,777.52 : 40,142.52 = 10,125.90 : x
  2. Step 2: Convert to fraction form
    26,777.52/40,142.52 = 10,125.90/x
  3. Step 3: Cross multiply
    26,777.52x = 40,142.52 × 10,125.90
  4. Step 4: Simplify right side
    26,777.52x = 406,479,143.27
  5. Step 5: Solve for x
    x = 406,479,143.27/26,777.52
  6. Step 6: Final answer
    x = 15,179.87

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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.