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Finding the Fourth Proportional to 6,247.92, 8,614.82 and 5,186.92

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Solution

The fourth proportional to 6,247.92, 8,614.82 and 5,186.92 is: 7,151.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,247.92 : 8,614.82 = 5,186.92 : x
  2. Step 2: Convert to fraction form
    6,247.92/8,614.82 = 5,186.92/x
  3. Step 3: Cross multiply
    6,247.92x = 8,614.82 × 5,186.92
  4. Step 4: Simplify right side
    6,247.92x = 44,684,382.15
  5. Step 5: Solve for x
    x = 44,684,382.15/6,247.92
  6. Step 6: Final answer
    x = 7,151.88

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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.