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Finding the Third Proportional to 3,766 and 9,139

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Solution

The third proportional to 3,766 and 9,139 is: 22,177.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,766 : 9,139 = 9,139 : x
  2. Step 2: Convert to fraction form
    3,766/9,139 = 9,139/x
  3. Step 3: Cross multiply
    3,766x = 9,139 × 9,139
  4. Step 4: Simplify right side
    3,766x = 83,521,321
  5. Step 5: Solve for x
    x = 83,521,321/3,766
  6. Step 6: Final answer
    x = 22,177.73

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.