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Finding the Third Proportional to 7,162 and 11,395

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Solution

The third proportional to 7,162 and 11,395 is: 18,129.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162 : 11,395 = 11,395 : x
  2. Step 2: Convert to fraction form
    7,162/11,395 = 11,395/x
  3. Step 3: Cross multiply
    7,162x = 11,395 × 11,395
  4. Step 4: Simplify right side
    7,162x = 129,846,025
  5. Step 5: Solve for x
    x = 129,846,025/7,162
  6. Step 6: Final answer
    x = 18,129.86

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.