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Finding the Fourth Proportional to 951.82, 1,422.68 and 827.44

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Solution

The fourth proportional to 951.82, 1,422.68 and 827.44 is: 1,236.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.82 : 1,422.68 = 827.44 : x
  2. Step 2: Convert to fraction form
    951.82/1,422.68 = 827.44/x
  3. Step 3: Cross multiply
    951.82x = 1,422.68 × 827.44
  4. Step 4: Simplify right side
    951.82x = 1,177,174.65
  5. Step 5: Solve for x
    x = 1,177,174.65/951.82
  6. Step 6: Final answer
    x = 1,236.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.