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Finding the Third Proportional to 26.50 and 55.38

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Solution

The third proportional to 26.50 and 55.38 is: 115.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.50 : 55.38 = 55.38 : x
  2. Step 2: Convert to fraction form
    26.50/55.38 = 55.38/x
  3. Step 3: Cross multiply
    26.50x = 55.38 × 55.38
  4. Step 4: Simplify right side
    26.50x = 3,066.39
  5. Step 5: Solve for x
    x = 3,066.39/26.50
  6. Step 6: Final answer
    x = 115.71

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.