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Finding the Fourth Proportional to 2,449.14, 3,673.74 and 717.80

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Solution

The fourth proportional to 2,449.14, 3,673.74 and 717.80 is: 1,076.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,449.14 : 3,673.74 = 717.80 : x
  2. Step 2: Convert to fraction form
    2,449.14/3,673.74 = 717.80/x
  3. Step 3: Cross multiply
    2,449.14x = 3,673.74 × 717.80
  4. Step 4: Simplify right side
    2,449.14x = 2,637,010.57
  5. Step 5: Solve for x
    x = 2,637,010.57/2,449.14
  6. Step 6: Final answer
    x = 1,076.71

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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.