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Finding the Fourth Proportional to 8,836.75, 13,255.67 and 2,680.75

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Solution

The fourth proportional to 8,836.75, 13,255.67 and 2,680.75 is: 4,021.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,836.75 : 13,255.67 = 2,680.75 : x
  2. Step 2: Convert to fraction form
    8,836.75/13,255.67 = 2,680.75/x
  3. Step 3: Cross multiply
    8,836.75x = 13,255.67 × 2,680.75
  4. Step 4: Simplify right side
    8,836.75x = 35,535,137.35
  5. Step 5: Solve for x
    x = 35,535,137.35/8,836.75
  6. Step 6: Final answer
    x = 4,021.29

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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.