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Finding the Fourth Proportional to 3,353.20, 4,627.11 and 1,861.11

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Solution

The fourth proportional to 3,353.20, 4,627.11 and 1,861.11 is: 2,568.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,353.20 : 4,627.11 = 1,861.11 : x
  2. Step 2: Convert to fraction form
    3,353.20/4,627.11 = 1,861.11/x
  3. Step 3: Cross multiply
    3,353.20x = 4,627.11 × 1,861.11
  4. Step 4: Simplify right side
    3,353.20x = 8,611,560.69
  5. Step 5: Solve for x
    x = 8,611,560.69/3,353.20
  6. Step 6: Final answer
    x = 2,568.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.