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Finding the Fourth Proportional to 5,791.92, 8,689.20 and 1,896.24

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Solution

The fourth proportional to 5,791.92, 8,689.20 and 1,896.24 is: 2,844.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.92 : 8,689.20 = 1,896.24 : x
  2. Step 2: Convert to fraction form
    5,791.92/8,689.20 = 1,896.24/x
  3. Step 3: Cross multiply
    5,791.92x = 8,689.20 × 1,896.24
  4. Step 4: Simplify right side
    5,791.92x = 16,476,808.61
  5. Step 5: Solve for x
    x = 16,476,808.61/5,791.92
  6. Step 6: Final answer
    x = 2,844.79

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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.