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Finding the Third Proportional to 9,394 and 19,939

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Solution

The third proportional to 9,394 and 19,939 is: 42,321.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,394 : 19,939 = 19,939 : x
  2. Step 2: Convert to fraction form
    9,394/19,939 = 19,939/x
  3. Step 3: Cross multiply
    9,394x = 19,939 × 19,939
  4. Step 4: Simplify right side
    9,394x = 397,563,721
  5. Step 5: Solve for x
    x = 397,563,721/9,394
  6. Step 6: Final answer
    x = 42,321.03

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.