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Finding the Fourth Proportional to 8,874.65, 12,249.53 and 6,222.71

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Solution

The fourth proportional to 8,874.65, 12,249.53 and 6,222.71 is: 8,589.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,874.65 : 12,249.53 = 6,222.71 : x
  2. Step 2: Convert to fraction form
    8,874.65/12,249.53 = 6,222.71/x
  3. Step 3: Cross multiply
    8,874.65x = 12,249.53 × 6,222.71
  4. Step 4: Simplify right side
    8,874.65x = 76,225,319.01
  5. Step 5: Solve for x
    x = 76,225,319.01/8,874.65
  6. Step 6: Final answer
    x = 8,589.10

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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.