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Finding the Fourth Proportional to 3,614.92, 5,422.60 and 1,767.60

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Solution

The fourth proportional to 3,614.92, 5,422.60 and 1,767.60 is: 2,651.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.92 : 5,422.60 = 1,767.60 : x
  2. Step 2: Convert to fraction form
    3,614.92/5,422.60 = 1,767.60/x
  3. Step 3: Cross multiply
    3,614.92x = 5,422.60 × 1,767.60
  4. Step 4: Simplify right side
    3,614.92x = 9,584,987.76
  5. Step 5: Solve for x
    x = 9,584,987.76/3,614.92
  6. Step 6: Final answer
    x = 2,651.51

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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.