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Finding the Fourth Proportional to 2,167.44, 3,251.01 and 867.99

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Solution

The fourth proportional to 2,167.44, 3,251.01 and 867.99 is: 1,301.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.44 : 3,251.01 = 867.99 : x
  2. Step 2: Convert to fraction form
    2,167.44/3,251.01 = 867.99/x
  3. Step 3: Cross multiply
    2,167.44x = 3,251.01 × 867.99
  4. Step 4: Simplify right side
    2,167.44x = 2,821,844.17
  5. Step 5: Solve for x
    x = 2,821,844.17/2,167.44
  6. Step 6: Final answer
    x = 1,301.92

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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.