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Finding the Third Proportional to 7,942 and 9,382

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Solution

The third proportional to 7,942 and 9,382 is: 11,083.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942 : 9,382 = 9,382 : x
  2. Step 2: Convert to fraction form
    7,942/9,382 = 9,382/x
  3. Step 3: Cross multiply
    7,942x = 9,382 × 9,382
  4. Step 4: Simplify right side
    7,942x = 88,021,924
  5. Step 5: Solve for x
    x = 88,021,924/7,942
  6. Step 6: Final answer
    x = 11,083.09

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.