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Finding the Fourth Proportional to 52,815.53, 79,236.26 and 15,375.94

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Solution

The fourth proportional to 52,815.53, 79,236.26 and 15,375.94 is: 23,067.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,815.53 : 79,236.26 = 15,375.94 : x
  2. Step 2: Convert to fraction form
    52,815.53/79,236.26 = 15,375.94/x
  3. Step 3: Cross multiply
    52,815.53x = 79,236.26 × 15,375.94
  4. Step 4: Simplify right side
    52,815.53x = 1,218,331,778.90
  5. Step 5: Solve for x
    x = 1,218,331,778.90/52,815.53
  6. Step 6: Final answer
    x = 23,067.68

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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.