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Finding the Fourth Proportional to 5,987,708.70, 8,979,813.45 and 2,149,086.30

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Solution

The fourth proportional to 5,987,708.70, 8,979,813.45 and 2,149,086.30 is: 3,223,001.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987,708.70 : 8,979,813.45 = 2,149,086.30 : x
  2. Step 2: Convert to fraction form
    5,987,708.70/8,979,813.45 = 2,149,086.30/x
  3. Step 3: Cross multiply
    5,987,708.70x = 8,979,813.45 × 2,149,086.30
  4. Step 4: Simplify right side
    5,987,708.70x = 19,298,394,061,950.73
  5. Step 5: Solve for x
    x = 19,298,394,061,950.73/5,987,708.70
  6. Step 6: Final answer
    x = 3,223,001.49

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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.