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Finding the Fourth Proportional to 6,207.92, 8,566.92 and 3,691.28

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Solution

The fourth proportional to 6,207.92, 8,566.92 and 3,691.28 is: 5,093.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,207.92 : 8,566.92 = 3,691.28 : x
  2. Step 2: Convert to fraction form
    6,207.92/8,566.92 = 3,691.28/x
  3. Step 3: Cross multiply
    6,207.92x = 8,566.92 × 3,691.28
  4. Step 4: Simplify right side
    6,207.92x = 31,622,900.46
  5. Step 5: Solve for x
    x = 31,622,900.46/6,207.92
  6. Step 6: Final answer
    x = 5,093.96

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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.