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Finding the Fourth Proportional to 3,581.89, 5,370.21 and 2,408.97

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Solution

The fourth proportional to 3,581.89, 5,370.21 and 2,408.97 is: 3,611.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.89 : 5,370.21 = 2,408.97 : x
  2. Step 2: Convert to fraction form
    3,581.89/5,370.21 = 2,408.97/x
  3. Step 3: Cross multiply
    3,581.89x = 5,370.21 × 2,408.97
  4. Step 4: Simplify right side
    3,581.89x = 12,936,694.92
  5. Step 5: Solve for x
    x = 12,936,694.92/3,581.89
  6. Step 6: Final answer
    x = 3,611.70

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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.