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Finding the Fourth Proportional to 8,272.26, 12,400.02 and 4,757.94

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Solution

The fourth proportional to 8,272.26, 12,400.02 and 4,757.94 is: 7,132.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,272.26 : 12,400.02 = 4,757.94 : x
  2. Step 2: Convert to fraction form
    8,272.26/12,400.02 = 4,757.94/x
  3. Step 3: Cross multiply
    8,272.26x = 12,400.02 × 4,757.94
  4. Step 4: Simplify right side
    8,272.26x = 58,998,551.16
  5. Step 5: Solve for x
    x = 58,998,551.16/8,272.26
  6. Step 6: Final answer
    x = 7,132.10

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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.