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Finding the Fourth Proportional to 29,052.78, 40,091.15 and 16,304.78

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Solution

The fourth proportional to 29,052.78, 40,091.15 and 16,304.78 is: 22,499.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,052.78 : 40,091.15 = 16,304.78 : x
  2. Step 2: Convert to fraction form
    29,052.78/40,091.15 = 16,304.78/x
  3. Step 3: Cross multiply
    29,052.78x = 40,091.15 × 16,304.78
  4. Step 4: Simplify right side
    29,052.78x = 653,677,221.00
  5. Step 5: Solve for x
    x = 653,677,221.00/29,052.78
  6. Step 6: Final answer
    x = 22,499.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.