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Finding the Fourth Proportional to 3,924.68, 5,881.55 and 2,949.65

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Solution

The fourth proportional to 3,924.68, 5,881.55 and 2,949.65 is: 4,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.68 : 5,881.55 = 2,949.65 : x
  2. Step 2: Convert to fraction form
    3,924.68/5,881.55 = 2,949.65/x
  3. Step 3: Cross multiply
    3,924.68x = 5,881.55 × 2,949.65
  4. Step 4: Simplify right side
    3,924.68x = 17,348,469.80
  5. Step 5: Solve for x
    x = 17,348,469.80/3,924.68
  6. Step 6: Final answer
    x = 4,420.36

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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.