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Finding the Fourth Proportional to 8,486.08, 11,713.48 and 4,949.96

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Solution

The fourth proportional to 8,486.08, 11,713.48 and 4,949.96 is: 6,832.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.08 : 11,713.48 = 4,949.96 : x
  2. Step 2: Convert to fraction form
    8,486.08/11,713.48 = 4,949.96/x
  3. Step 3: Cross multiply
    8,486.08x = 11,713.48 × 4,949.96
  4. Step 4: Simplify right side
    8,486.08x = 57,981,257.46
  5. Step 5: Solve for x
    x = 57,981,257.46/8,486.08
  6. Step 6: Final answer
    x = 6,832.51

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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.