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Finding the Fourth Proportional to 7,167.88, 10,751.72 and 2,236.80

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Solution

The fourth proportional to 7,167.88, 10,751.72 and 2,236.80 is: 3,355.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,167.88 : 10,751.72 = 2,236.80 : x
  2. Step 2: Convert to fraction form
    7,167.88/10,751.72 = 2,236.80/x
  3. Step 3: Cross multiply
    7,167.88x = 10,751.72 × 2,236.80
  4. Step 4: Simplify right side
    7,167.88x = 24,049,447.30
  5. Step 5: Solve for x
    x = 24,049,447.30/7,167.88
  6. Step 6: Final answer
    x = 3,355.17

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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.