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Finding the Fourth Proportional to 8,706.86, 13,062.45 and 2,550.86

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Solution

The fourth proportional to 8,706.86, 13,062.45 and 2,550.86 is: 3,826.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.86 : 13,062.45 = 2,550.86 : x
  2. Step 2: Convert to fraction form
    8,706.86/13,062.45 = 2,550.86/x
  3. Step 3: Cross multiply
    8,706.86x = 13,062.45 × 2,550.86
  4. Step 4: Simplify right side
    8,706.86x = 33,320,481.21
  5. Step 5: Solve for x
    x = 33,320,481.21/8,706.86
  6. Step 6: Final answer
    x = 3,826.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.