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Finding the Third Proportional to 6.94 and 11.56

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Solution

The third proportional to 6.94 and 11.56 is: 19.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.94 : 11.56 = 11.56 : x
  2. Step 2: Convert to fraction form
    6.94/11.56 = 11.56/x
  3. Step 3: Cross multiply
    6.94x = 11.56 × 11.56
  4. Step 4: Simplify right side
    6.94x = 133.69
  5. Step 5: Solve for x
    x = 133.69/6.94
  6. Step 6: Final answer
    x = 19.27

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.