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Finding the Third Proportional to 6,115 and 9,231

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Solution

The third proportional to 6,115 and 9,231 is: 13,934.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115 : 9,231 = 9,231 : x
  2. Step 2: Convert to fraction form
    6,115/9,231 = 9,231/x
  3. Step 3: Cross multiply
    6,115x = 9,231 × 9,231
  4. Step 4: Simplify right side
    6,115x = 85,211,361
  5. Step 5: Solve for x
    x = 85,211,361/6,115
  6. Step 6: Final answer
    x = 13,934.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.