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Finding the Third Proportional to 19,940 and 43,712

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Solution

The third proportional to 19,940 and 43,712 is: 95,824.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940 : 43,712 = 43,712 : x
  2. Step 2: Convert to fraction form
    19,940/43,712 = 43,712/x
  3. Step 3: Cross multiply
    19,940x = 43,712 × 43,712
  4. Step 4: Simplify right side
    19,940x = 1,910,738,944
  5. Step 5: Solve for x
    x = 1,910,738,944/19,940
  6. Step 6: Final answer
    x = 95,824.42

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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.