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Finding the Fourth Proportional to 8,672.75, 13,012.05 and 2,750.60

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Solution

The fourth proportional to 8,672.75, 13,012.05 and 2,750.60 is: 4,126.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.75 : 13,012.05 = 2,750.60 : x
  2. Step 2: Convert to fraction form
    8,672.75/13,012.05 = 2,750.60/x
  3. Step 3: Cross multiply
    8,672.75x = 13,012.05 × 2,750.60
  4. Step 4: Simplify right side
    8,672.75x = 35,790,930.98
  5. Step 5: Solve for x
    x = 35,790,930.98/8,672.75
  6. Step 6: Final answer
    x = 4,126.83

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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.