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Finding the Fourth Proportional to 6,593,999.90, 9,890,999.85 and 5,474,255.90

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Solution

The fourth proportional to 6,593,999.90, 9,890,999.85 and 5,474,255.90 is: 8,211,383.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,593,999.90 : 9,890,999.85 = 5,474,255.90 : x
  2. Step 2: Convert to fraction form
    6,593,999.90/9,890,999.85 = 5,474,255.90/x
  3. Step 3: Cross multiply
    6,593,999.90x = 9,890,999.85 × 5,474,255.90
  4. Step 4: Simplify right side
    6,593,999.90x = 54,145,864,285,761.62
  5. Step 5: Solve for x
    x = 54,145,864,285,761.62/6,593,999.90
  6. Step 6: Final answer
    x = 8,211,383.85

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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.