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Finding the Fourth Proportional to 7,793,999.80, 11,690,999.70 and 5,904,431.80

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Solution

The fourth proportional to 7,793,999.80, 11,690,999.70 and 5,904,431.80 is: 8,856,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,793,999.80 : 11,690,999.70 = 5,904,431.80 : x
  2. Step 2: Convert to fraction form
    7,793,999.80/11,690,999.70 = 5,904,431.80/x
  3. Step 3: Cross multiply
    7,793,999.80x = 11,690,999.70 × 5,904,431.80
  4. Step 4: Simplify right side
    7,793,999.80x = 69,028,710,402,470.45
  5. Step 5: Solve for x
    x = 69,028,710,402,470.45/7,793,999.80
  6. Step 6: Final answer
    x = 8,856,647.70

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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.