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Finding the Fourth Proportional to 6,366.92, 8,789.31 and 3,713.90

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Solution

The fourth proportional to 6,366.92, 8,789.31 and 3,713.90 is: 5,126.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,366.92 : 8,789.31 = 3,713.90 : x
  2. Step 2: Convert to fraction form
    6,366.92/8,789.31 = 3,713.90/x
  3. Step 3: Cross multiply
    6,366.92x = 8,789.31 × 3,713.90
  4. Step 4: Simplify right side
    6,366.92x = 32,642,574.46
  5. Step 5: Solve for x
    x = 32,642,574.46/6,366.92
  6. Step 6: Final answer
    x = 5,126.91

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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.