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Finding the Fourth Proportional to 9,249.87, 12,766.07 and 5,217.53

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Solution

The fourth proportional to 9,249.87, 12,766.07 and 5,217.53 is: 7,200.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,249.87 : 12,766.07 = 5,217.53 : x
  2. Step 2: Convert to fraction form
    9,249.87/12,766.07 = 5,217.53/x
  3. Step 3: Cross multiply
    9,249.87x = 12,766.07 × 5,217.53
  4. Step 4: Simplify right side
    9,249.87x = 66,607,353.21
  5. Step 5: Solve for x
    x = 66,607,353.21/9,249.87
  6. Step 6: Final answer
    x = 7,200.90

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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.