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Finding the Fourth Proportional to 11,375.75, 17,063.67 and 3,167.75

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Solution

The fourth proportional to 11,375.75, 17,063.67 and 3,167.75 is: 4,751.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,375.75 : 17,063.67 = 3,167.75 : x
  2. Step 2: Convert to fraction form
    11,375.75/17,063.67 = 3,167.75/x
  3. Step 3: Cross multiply
    11,375.75x = 17,063.67 × 3,167.75
  4. Step 4: Simplify right side
    11,375.75x = 54,053,440.64
  5. Step 5: Solve for x
    x = 54,053,440.64/11,375.75
  6. Step 6: Final answer
    x = 4,751.64

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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.