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Finding the Fourth Proportional to 21,930,593.04, 32,896,978.20 and 5,756,590.80

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Solution

The fourth proportional to 21,930,593.04, 32,896,978.20 and 5,756,590.80 is: 8,635,171.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,930,593.04 : 32,896,978.20 = 5,756,590.80 : x
  2. Step 2: Convert to fraction form
    21,930,593.04/32,896,978.20 = 5,756,590.80/x
  3. Step 3: Cross multiply
    21,930,593.04x = 32,896,978.20 × 5,756,590.80
  4. Step 4: Simplify right side
    21,930,593.04x = 189,374,442,053,920.56
  5. Step 5: Solve for x
    x = 189,374,442,053,920.56/21,930,593.04
  6. Step 6: Final answer
    x = 8,635,171.96

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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.