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Finding the Fourth Proportional to 6,752,629.89, 9,319,807.11 and 4,000,866.60

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Solution

The fourth proportional to 6,752,629.89, 9,319,807.11 and 4,000,866.60 is: 5,521,893.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,752,629.89 : 9,319,807.11 = 4,000,866.60 : x
  2. Step 2: Convert to fraction form
    6,752,629.89/9,319,807.11 = 4,000,866.60/x
  3. Step 3: Cross multiply
    6,752,629.89x = 9,319,807.11 × 4,000,866.60
  4. Step 4: Simplify right side
    6,752,629.89x = 37,287,304,984,841.52
  5. Step 5: Solve for x
    x = 37,287,304,984,841.52/6,752,629.89
  6. Step 6: Final answer
    x = 5,521,893.78

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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.