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Finding the Fourth Proportional to 5,375.92, 8,061.36 and 3,184.96

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Solution

The fourth proportional to 5,375.92, 8,061.36 and 3,184.96 is: 4,775.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.92 : 8,061.36 = 3,184.96 : x
  2. Step 2: Convert to fraction form
    5,375.92/8,061.36 = 3,184.96/x
  3. Step 3: Cross multiply
    5,375.92x = 8,061.36 × 3,184.96
  4. Step 4: Simplify right side
    5,375.92x = 25,675,109.15
  5. Step 5: Solve for x
    x = 25,675,109.15/5,375.92
  6. Step 6: Final answer
    x = 4,775.95

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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.