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Finding the Fourth Proportional to 7,244,645.46, 9,997,850.46 and 3,981,575.88

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Solution

The fourth proportional to 7,244,645.46, 9,997,850.46 and 3,981,575.88 is: 5,494,706.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,244,645.46 : 9,997,850.46 = 3,981,575.88 : x
  2. Step 2: Convert to fraction form
    7,244,645.46/9,997,850.46 = 3,981,575.88/x
  3. Step 3: Cross multiply
    7,244,645.46x = 9,997,850.46 × 3,981,575.88
  4. Step 4: Simplify right side
    7,244,645.46x = 39,807,200,243,382.91
  5. Step 5: Solve for x
    x = 39,807,200,243,382.91/7,244,645.46
  6. Step 6: Final answer
    x = 5,494,706.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.