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Finding the Fourth Proportional to 8,791.72, 13,187.48 and 3,593.96

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Solution

The fourth proportional to 8,791.72, 13,187.48 and 3,593.96 is: 5,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.72 : 13,187.48 = 3,593.96 : x
  2. Step 2: Convert to fraction form
    8,791.72/13,187.48 = 3,593.96/x
  3. Step 3: Cross multiply
    8,791.72x = 13,187.48 × 3,593.96
  4. Step 4: Simplify right side
    8,791.72x = 47,395,275.62
  5. Step 5: Solve for x
    x = 47,395,275.62/8,791.72
  6. Step 6: Final answer
    x = 5,390.90

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1.5x scale

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.