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Finding the Fourth Proportional to 4,170.73, 6,255.16 and 1,248.66

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Solution

The fourth proportional to 4,170.73, 6,255.16 and 1,248.66 is: 1,872.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,170.73 : 6,255.16 = 1,248.66 : x
  2. Step 2: Convert to fraction form
    4,170.73/6,255.16 = 1,248.66/x
  3. Step 3: Cross multiply
    4,170.73x = 6,255.16 × 1,248.66
  4. Step 4: Simplify right side
    4,170.73x = 7,810,568.09
  5. Step 5: Solve for x
    x = 7,810,568.09/4,170.73
  6. Step 6: Final answer
    x = 1,872.71

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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.