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Finding the Fourth Proportional to 2,169.38, 3,254.41 and 708.01

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Solution

The fourth proportional to 2,169.38, 3,254.41 and 708.01 is: 1,062.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.38 : 3,254.41 = 708.01 : x
  2. Step 2: Convert to fraction form
    2,169.38/3,254.41 = 708.01/x
  3. Step 3: Cross multiply
    2,169.38x = 3,254.41 × 708.01
  4. Step 4: Simplify right side
    2,169.38x = 2,304,147.57
  5. Step 5: Solve for x
    x = 2,304,147.57/2,169.38
  6. Step 6: Final answer
    x = 1,062.12

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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.