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Finding the Third Proportional to 8,366 and 19,790

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Solution

The third proportional to 8,366 and 19,790 is: 46,813.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,366 : 19,790 = 19,790 : x
  2. Step 2: Convert to fraction form
    8,366/19,790 = 19,790/x
  3. Step 3: Cross multiply
    8,366x = 19,790 × 19,790
  4. Step 4: Simplify right side
    8,366x = 391,644,100
  5. Step 5: Solve for x
    x = 391,644,100/8,366
  6. Step 6: Final answer
    x = 46,813.78

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.