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Finding the Fourth Proportional to 8,392,978.90, 12,589,467.63 and 2,327,710.52

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Solution

The fourth proportional to 8,392,978.90, 12,589,467.63 and 2,327,710.52 is: 3,491,565.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392,978.90 : 12,589,467.63 = 2,327,710.52 : x
  2. Step 2: Convert to fraction form
    8,392,978.90/12,589,467.63 = 2,327,710.52/x
  3. Step 3: Cross multiply
    8,392,978.90x = 12,589,467.63 × 2,327,710.52
  4. Step 4: Simplify right side
    8,392,978.90x = 29,304,636,195,479.47
  5. Step 5: Solve for x
    x = 29,304,636,195,479.47/8,392,978.90
  6. Step 6: Final answer
    x = 3,491,565.58

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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.