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Finding the Fourth Proportional to 2,046.26, 3,067.53 and 814.40

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Solution

The fourth proportional to 2,046.26, 3,067.53 and 814.40 is: 1,220.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,046.26 : 3,067.53 = 814.40 : x
  2. Step 2: Convert to fraction form
    2,046.26/3,067.53 = 814.40/x
  3. Step 3: Cross multiply
    2,046.26x = 3,067.53 × 814.40
  4. Step 4: Simplify right side
    2,046.26x = 2,498,181.09
  5. Step 5: Solve for x
    x = 2,498,181.09/2,046.26
  6. Step 6: Final answer
    x = 1,220.86

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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.