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Finding the Fourth Proportional to 52,655.44, 78,993.76 and 19,375.68

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Solution

The fourth proportional to 52,655.44, 78,993.76 and 19,375.68 is: 29,067.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,655.44 : 78,993.76 = 19,375.68 : x
  2. Step 2: Convert to fraction form
    52,655.44/78,993.76 = 19,375.68/x
  3. Step 3: Cross multiply
    52,655.44x = 78,993.76 × 19,375.68
  4. Step 4: Simplify right side
    52,655.44x = 1,530,557,823.21
  5. Step 5: Solve for x
    x = 1,530,557,823.21/52,655.44
  6. Step 6: Final answer
    x = 29,067.42

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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.