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Finding the Fourth Proportional to 5,981,796.30, 8,972,694.45 and 5,519,901.90

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Solution

The fourth proportional to 5,981,796.30, 8,972,694.45 and 5,519,901.90 is: 8,279,852.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,981,796.30 : 8,972,694.45 = 5,519,901.90 : x
  2. Step 2: Convert to fraction form
    5,981,796.30/8,972,694.45 = 5,519,901.90/x
  3. Step 3: Cross multiply
    5,981,796.30x = 8,972,694.45 × 5,519,901.90
  4. Step 4: Simplify right side
    5,981,796.30x = 49,528,393,142,674.45
  5. Step 5: Solve for x
    x = 49,528,393,142,674.45/5,981,796.30
  6. Step 6: Final answer
    x = 8,279,852.85

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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.