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Finding the Fourth Proportional to 5,791.28, 8,696.53 and 3,613.85

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Solution

The fourth proportional to 5,791.28, 8,696.53 and 3,613.85 is: 5,426.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.28 : 8,696.53 = 3,613.85 : x
  2. Step 2: Convert to fraction form
    5,791.28/8,696.53 = 3,613.85/x
  3. Step 3: Cross multiply
    5,791.28x = 8,696.53 × 3,613.85
  4. Step 4: Simplify right side
    5,791.28x = 31,427,920.99
  5. Step 5: Solve for x
    x = 31,427,920.99/5,791.28
  6. Step 6: Final answer
    x = 5,426.77

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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.