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Finding the Third Proportional to 3.56 and 9.61

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Solution

The third proportional to 3.56 and 9.61 is: 25.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.56 : 9.61 = 9.61 : x
  2. Step 2: Convert to fraction form
    3.56/9.61 = 9.61/x
  3. Step 3: Cross multiply
    3.56x = 9.61 × 9.61
  4. Step 4: Simplify right side
    3.56x = 92.34
  5. Step 5: Solve for x
    x = 92.34/3.56
  6. Step 6: Final answer
    x = 25.92

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Why These Related Problems?

These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.