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Finding the Third Proportional to 11.39 and 16.93

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Solution

The third proportional to 11.39 and 16.93 is: 25.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.39 : 16.93 = 16.93 : x
  2. Step 2: Convert to fraction form
    11.39/16.93 = 16.93/x
  3. Step 3: Cross multiply
    11.39x = 16.93 × 16.93
  4. Step 4: Simplify right side
    11.39x = 286.55
  5. Step 5: Solve for x
    x = 286.55/11.39
  6. Step 6: Final answer
    x = 25.16

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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.