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Finding the Third Proportional to 12,758 and 27,982

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Solution

The third proportional to 12,758 and 27,982 is: 61,372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,758 : 27,982 = 27,982 : x
  2. Step 2: Convert to fraction form
    12,758/27,982 = 27,982/x
  3. Step 3: Cross multiply
    12,758x = 27,982 × 27,982
  4. Step 4: Simplify right side
    12,758x = 782,992,324
  5. Step 5: Solve for x
    x = 782,992,324/12,758
  6. Step 6: Final answer
    x = 61,372.65

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.