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Finding the Fourth Proportional to 44,581.76, 66,856.71 and 20,885.27

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Solution

The fourth proportional to 44,581.76, 66,856.71 and 20,885.27 is: 31,320.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,581.76 : 66,856.71 = 20,885.27 : x
  2. Step 2: Convert to fraction form
    44,581.76/66,856.71 = 20,885.27/x
  3. Step 3: Cross multiply
    44,581.76x = 66,856.71 × 20,885.27
  4. Step 4: Simplify right side
    44,581.76x = 1,396,320,439.66
  5. Step 5: Solve for x
    x = 1,396,320,439.66/44,581.76
  6. Step 6: Final answer
    x = 31,320.44

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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.