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Finding the Fourth Proportional to 52,704.87, 79,067.90 and 19,425.12

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Solution

The fourth proportional to 52,704.87, 79,067.90 and 19,425.12 is: 29,141.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,704.87 : 79,067.90 = 19,425.12 : x
  2. Step 2: Convert to fraction form
    52,704.87/79,067.90 = 19,425.12/x
  3. Step 3: Cross multiply
    52,704.87x = 79,067.90 × 19,425.12
  4. Step 4: Simplify right side
    52,704.87x = 1,535,903,348.52
  5. Step 5: Solve for x
    x = 1,535,903,348.52/52,704.87
  6. Step 6: Final answer
    x = 29,141.58

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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.