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Finding the Third Proportional to 27,940 and 56,690

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Solution

The third proportional to 27,940 and 56,690 is: 115,023.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,940 : 56,690 = 56,690 : x
  2. Step 2: Convert to fraction form
    27,940/56,690 = 56,690/x
  3. Step 3: Cross multiply
    27,940x = 56,690 × 56,690
  4. Step 4: Simplify right side
    27,940x = 3,213,756,100
  5. Step 5: Solve for x
    x = 3,213,756,100/27,940
  6. Step 6: Final answer
    x = 115,023.48

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.