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Finding the Fourth Proportional to 67,227.27, 100,856.03 and 20,484.87

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Solution

The fourth proportional to 67,227.27, 100,856.03 and 20,484.87 is: 30,731.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,227.27 : 100,856.03 = 20,484.87 : x
  2. Step 2: Convert to fraction form
    67,227.27/100,856.03 = 20,484.87/x
  3. Step 3: Cross multiply
    67,227.27x = 100,856.03 × 20,484.87
  4. Step 4: Simplify right side
    67,227.27x = 2,066,022,560.84
  5. Step 5: Solve for x
    x = 2,066,022,560.84/67,227.27
  6. Step 6: Final answer
    x = 30,731.91

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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.