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Finding the Fourth Proportional to 47,791.88, 71,664.60 and 14,505.92

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Solution

The fourth proportional to 47,791.88, 71,664.60 and 14,505.92 is: 21,751.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,791.88 : 71,664.60 = 14,505.92 : x
  2. Step 2: Convert to fraction form
    47,791.88/71,664.60 = 14,505.92/x
  3. Step 3: Cross multiply
    47,791.88x = 71,664.60 × 14,505.92
  4. Step 4: Simplify right side
    47,791.88x = 1,039,560,954.43
  5. Step 5: Solve for x
    x = 1,039,560,954.43/47,791.88
  6. Step 6: Final answer
    x = 21,751.83

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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.