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Finding the Fourth Proportional to 7,249.68, 10,874.52 and 3,786.12

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Solution

The fourth proportional to 7,249.68, 10,874.52 and 3,786.12 is: 5,679.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,249.68 : 10,874.52 = 3,786.12 : x
  2. Step 2: Convert to fraction form
    7,249.68/10,874.52 = 3,786.12/x
  3. Step 3: Cross multiply
    7,249.68x = 10,874.52 × 3,786.12
  4. Step 4: Simplify right side
    7,249.68x = 41,172,237.66
  5. Step 5: Solve for x
    x = 41,172,237.66/7,249.68
  6. Step 6: Final answer
    x = 5,679.18

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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.