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Finding the Third Proportional to 9,442 and 20,747

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Solution

The third proportional to 9,442 and 20,747 is: 45,587.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,442 : 20,747 = 20,747 : x
  2. Step 2: Convert to fraction form
    9,442/20,747 = 20,747/x
  3. Step 3: Cross multiply
    9,442x = 20,747 × 20,747
  4. Step 4: Simplify right side
    9,442x = 430,438,009
  5. Step 5: Solve for x
    x = 430,438,009/9,442
  6. Step 6: Final answer
    x = 45,587.59

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.