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Finding the Fourth Proportional to 2,182.80, 3,010.86 and 1,251.30

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Solution

The fourth proportional to 2,182.80, 3,010.86 and 1,251.30 is: 1,725.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182.80 : 3,010.86 = 1,251.30 : x
  2. Step 2: Convert to fraction form
    2,182.80/3,010.86 = 1,251.30/x
  3. Step 3: Cross multiply
    2,182.80x = 3,010.86 × 1,251.30
  4. Step 4: Simplify right side
    2,182.80x = 3,767,489.12
  5. Step 5: Solve for x
    x = 3,767,489.12/2,182.80
  6. Step 6: Final answer
    x = 1,725.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.