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Finding the Fourth Proportional to 8,489.16, 11,713.77 and 4,951.71

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Solution

The fourth proportional to 8,489.16, 11,713.77 and 4,951.71 is: 6,832.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,489.16 : 11,713.77 = 4,951.71 : x
  2. Step 2: Convert to fraction form
    8,489.16/11,713.77 = 4,951.71/x
  3. Step 3: Cross multiply
    8,489.16x = 11,713.77 × 4,951.71
  4. Step 4: Simplify right side
    8,489.16x = 58,003,192.05
  5. Step 5: Solve for x
    x = 58,003,192.05/8,489.16
  6. Step 6: Final answer
    x = 6,832.62

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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.