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Finding the Fourth Proportional to 26,893.20, 40,339.80 and 15,229.20

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Solution

The fourth proportional to 26,893.20, 40,339.80 and 15,229.20 is: 22,843.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,893.20 : 40,339.80 = 15,229.20 : x
  2. Step 2: Convert to fraction form
    26,893.20/40,339.80 = 15,229.20/x
  3. Step 3: Cross multiply
    26,893.20x = 40,339.80 × 15,229.20
  4. Step 4: Simplify right side
    26,893.20x = 614,342,882.16
  5. Step 5: Solve for x
    x = 614,342,882.16/26,893.20
  6. Step 6: Final answer
    x = 22,843.80

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1.5x scale

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.