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Finding the Fourth Proportional to 66,223.71, 99,380.21 and 24,670.71

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Solution

The fourth proportional to 66,223.71, 99,380.21 and 24,670.71 is: 37,022.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,223.71 : 99,380.21 = 24,670.71 : x
  2. Step 2: Convert to fraction form
    66,223.71/99,380.21 = 24,670.71/x
  3. Step 3: Cross multiply
    66,223.71x = 99,380.21 × 24,670.71
  4. Step 4: Simplify right side
    66,223.71x = 2,451,780,217.30
  5. Step 5: Solve for x
    x = 2,451,780,217.30/66,223.71
  6. Step 6: Final answer
    x = 37,022.70

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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.