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Finding the Third Proportional to 20,116 and 40,938

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Solution

The third proportional to 20,116 and 40,938 is: 83,312.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116 : 40,938 = 40,938 : x
  2. Step 2: Convert to fraction form
    20,116/40,938 = 40,938/x
  3. Step 3: Cross multiply
    20,116x = 40,938 × 40,938
  4. Step 4: Simplify right side
    20,116x = 1,675,919,844
  5. Step 5: Solve for x
    x = 1,675,919,844/20,116
  6. Step 6: Final answer
    x = 83,312.78

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.