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Finding the Fourth Proportional to 29,205.50, 43,839.44 and 12,573.78

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Solution

The fourth proportional to 29,205.50, 43,839.44 and 12,573.78 is: 18,874.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,205.50 : 43,839.44 = 12,573.78 : x
  2. Step 2: Convert to fraction form
    29,205.50/43,839.44 = 12,573.78/x
  3. Step 3: Cross multiply
    29,205.50x = 43,839.44 × 12,573.78
  4. Step 4: Simplify right side
    29,205.50x = 551,227,473.88
  5. Step 5: Solve for x
    x = 551,227,473.88/29,205.50
  6. Step 6: Final answer
    x = 18,874.10

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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.