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Finding the Third Proportional to 11.38 and 16.56

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Solution

The third proportional to 11.38 and 16.56 is: 24.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.38 : 16.56 = 16.56 : x
  2. Step 2: Convert to fraction form
    11.38/16.56 = 16.56/x
  3. Step 3: Cross multiply
    11.38x = 16.56 × 16.56
  4. Step 4: Simplify right side
    11.38x = 274.32
  5. Step 5: Solve for x
    x = 274.32/11.38
  6. Step 6: Final answer
    x = 24.12

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.