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Finding the Third Proportional to 20,916 and 43,883

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Solution

The third proportional to 20,916 and 43,883 is: 92,069.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916 : 43,883 = 43,883 : x
  2. Step 2: Convert to fraction form
    20,916/43,883 = 43,883/x
  3. Step 3: Cross multiply
    20,916x = 43,883 × 43,883
  4. Step 4: Simplify right side
    20,916x = 1,925,717,689
  5. Step 5: Solve for x
    x = 1,925,717,689/20,916
  6. Step 6: Final answer
    x = 92,069.12

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.