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Finding the Fourth Proportional to 2,449.34, 3,674.07 and 717.96

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Solution

The fourth proportional to 2,449.34, 3,674.07 and 717.96 is: 1,076.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,449.34 : 3,674.07 = 717.96 : x
  2. Step 2: Convert to fraction form
    2,449.34/3,674.07 = 717.96/x
  3. Step 3: Cross multiply
    2,449.34x = 3,674.07 × 717.96
  4. Step 4: Simplify right side
    2,449.34x = 2,637,835.30
  5. Step 5: Solve for x
    x = 2,637,835.30/2,449.34
  6. Step 6: Final answer
    x = 1,076.96

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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.