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Finding the Fourth Proportional to 3,481.61, 5,223.02 and 1,839.53

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Solution

The fourth proportional to 3,481.61, 5,223.02 and 1,839.53 is: 2,759.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.61 : 5,223.02 = 1,839.53 : x
  2. Step 2: Convert to fraction form
    3,481.61/5,223.02 = 1,839.53/x
  3. Step 3: Cross multiply
    3,481.61x = 5,223.02 × 1,839.53
  4. Step 4: Simplify right side
    3,481.61x = 9,607,892.78
  5. Step 5: Solve for x
    x = 9,607,892.78/3,481.61
  6. Step 6: Final answer
    x = 2,759.61

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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.