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Finding the Third Proportional to 9.39 and 14.03

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Solution

The third proportional to 9.39 and 14.03 is: 20.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.39 : 14.03 = 14.03 : x
  2. Step 2: Convert to fraction form
    9.39/14.03 = 14.03/x
  3. Step 3: Cross multiply
    9.39x = 14.03 × 14.03
  4. Step 4: Simplify right side
    9.39x = 196.77
  5. Step 5: Solve for x
    x = 196.77/9.39
  6. Step 6: Final answer
    x = 20.96

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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.