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Finding the Fourth Proportional to 8,606.10, 12,910.98 and 2,766.81

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Solution

The fourth proportional to 8,606.10, 12,910.98 and 2,766.81 is: 4,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.10 : 12,910.98 = 2,766.81 : x
  2. Step 2: Convert to fraction form
    8,606.10/12,910.98 = 2,766.81/x
  3. Step 3: Cross multiply
    8,606.10x = 12,910.98 × 2,766.81
  4. Step 4: Simplify right side
    8,606.10x = 35,722,228.57
  5. Step 5: Solve for x
    x = 35,722,228.57/8,606.10
  6. Step 6: Final answer
    x = 4,150.80

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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.