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Finding the Fourth Proportional to 14,978,234.20, 22,467,351.30 and 7,419,962.20

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Solution

The fourth proportional to 14,978,234.20, 22,467,351.30 and 7,419,962.20 is: 11,129,943.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,978,234.20 : 22,467,351.30 = 7,419,962.20 : x
  2. Step 2: Convert to fraction form
    14,978,234.20/22,467,351.30 = 7,419,962.20/x
  3. Step 3: Cross multiply
    14,978,234.20x = 22,467,351.30 × 7,419,962.20
  4. Step 4: Simplify right side
    14,978,234.20x = 166,706,897,380,120.88
  5. Step 5: Solve for x
    x = 166,706,897,380,120.88/14,978,234.20
  6. Step 6: Final answer
    x = 11,129,943.30

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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.