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Finding the Fourth Proportional to 3,046.26, 4,203.82 and 1,649

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Solution

The fourth proportional to 3,046.26, 4,203.82 and 1,649 is: 2,275.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,046.26 : 4,203.82 = 1,649 : x
  2. Step 2: Convert to fraction form
    3,046.26/4,203.82 = 1,649/x
  3. Step 3: Cross multiply
    3,046.26x = 4,203.82 × 1,649
  4. Step 4: Simplify right side
    3,046.26x = 6,932,099.18
  5. Step 5: Solve for x
    x = 6,932,099.18/3,046.26
  6. Step 6: Final answer
    x = 2,275.61

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Why These Related Problems?

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