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Finding the Fourth Proportional to 27.64, 41.44 and 16.96

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Solution

The fourth proportional to 27.64, 41.44 and 16.96 is: 25.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27.64 : 41.44 = 16.96 : x
  2. Step 2: Convert to fraction form
    27.64/41.44 = 16.96/x
  3. Step 3: Cross multiply
    27.64x = 41.44 × 16.96
  4. Step 4: Simplify right side
    27.64x = 702.82
  5. Step 5: Solve for x
    x = 702.82/27.64
  6. Step 6: Final answer
    x = 25.43

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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.