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Finding the Third Proportional to 9,438 and 19,794

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Solution

The third proportional to 9,438 and 19,794 is: 41,513.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438 : 19,794 = 19,794 : x
  2. Step 2: Convert to fraction form
    9,438/19,794 = 19,794/x
  3. Step 3: Cross multiply
    9,438x = 19,794 × 19,794
  4. Step 4: Simplify right side
    9,438x = 391,802,436
  5. Step 5: Solve for x
    x = 391,802,436/9,438
  6. Step 6: Final answer
    x = 41,513.29

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.