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Finding the Fourth Proportional to 8,168.52, 12,249.26 and 2,620.02

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Solution

The fourth proportional to 8,168.52, 12,249.26 and 2,620.02 is: 3,928.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.52 : 12,249.26 = 2,620.02 : x
  2. Step 2: Convert to fraction form
    8,168.52/12,249.26 = 2,620.02/x
  3. Step 3: Cross multiply
    8,168.52x = 12,249.26 × 2,620.02
  4. Step 4: Simplify right side
    8,168.52x = 32,093,306.19
  5. Step 5: Solve for x
    x = 32,093,306.19/8,168.52
  6. Step 6: Final answer
    x = 3,928.90

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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.