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Finding the Fourth Proportional to 5,789.72, 8,696.21 and 3,454.29

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Solution

The fourth proportional to 5,789.72, 8,696.21 and 3,454.29 is: 5,188.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,789.72 : 8,696.21 = 3,454.29 : x
  2. Step 2: Convert to fraction form
    5,789.72/8,696.21 = 3,454.29/x
  3. Step 3: Cross multiply
    5,789.72x = 8,696.21 × 3,454.29
  4. Step 4: Simplify right side
    5,789.72x = 30,039,213.97
  5. Step 5: Solve for x
    x = 30,039,213.97/5,789.72
  6. Step 6: Final answer
    x = 5,188.37

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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.