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Finding the Third Proportional to 16.64 and 26.39

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Solution

The third proportional to 16.64 and 26.39 is: 41.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.64 : 26.39 = 26.39 : x
  2. Step 2: Convert to fraction form
    16.64/26.39 = 26.39/x
  3. Step 3: Cross multiply
    16.64x = 26.39 × 26.39
  4. Step 4: Simplify right side
    16.64x = 696.47
  5. Step 5: Solve for x
    x = 696.47/16.64
  6. Step 6: Final answer
    x = 41.85

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.