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Finding the Fourth Proportional to 19,773,839.20, 29,597,773.20 and 14,105,135.20

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Solution

The fourth proportional to 19,773,839.20, 29,597,773.20 and 14,105,135.20 is: 21,112,773.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,773,839.20 : 29,597,773.20 = 14,105,135.20 : x
  2. Step 2: Convert to fraction form
    19,773,839.20/29,597,773.20 = 14,105,135.20/x
  3. Step 3: Cross multiply
    19,773,839.20x = 29,597,773.20 × 14,105,135.20
  4. Step 4: Simplify right side
    19,773,839.20x = 417,480,592,604,936.62
  5. Step 5: Solve for x
    x = 417,480,592,604,936.62/19,773,839.20
  6. Step 6: Final answer
    x = 21,112,773.72

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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.