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Finding the Fourth Proportional to 52,418.78, 72,338.78 and 29,758.44

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Solution

The fourth proportional to 52,418.78, 72,338.78 and 29,758.44 is: 41,067.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,418.78 : 72,338.78 = 29,758.44 : x
  2. Step 2: Convert to fraction form
    52,418.78/72,338.78 = 29,758.44/x
  3. Step 3: Cross multiply
    52,418.78x = 72,338.78 × 29,758.44
  4. Step 4: Simplify right side
    52,418.78x = 2,152,689,244.30
  5. Step 5: Solve for x
    x = 2,152,689,244.30/52,418.78
  6. Step 6: Final answer
    x = 41,067.14

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1.5x scale

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.