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Finding the Fourth Proportional to 3,608.85, 4,981.16 and 2,353.02

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Solution

The fourth proportional to 3,608.85, 4,981.16 and 2,353.02 is: 3,247.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.85 : 4,981.16 = 2,353.02 : x
  2. Step 2: Convert to fraction form
    3,608.85/4,981.16 = 2,353.02/x
  3. Step 3: Cross multiply
    3,608.85x = 4,981.16 × 2,353.02
  4. Step 4: Simplify right side
    3,608.85x = 11,720,757.34
  5. Step 5: Solve for x
    x = 11,720,757.34/3,608.85
  6. Step 6: Final answer
    x = 3,247.78

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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.