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Finding the Third Proportional to 20,426 and 43,982

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Solution

The third proportional to 20,426 and 43,982 is: 94,703.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426 : 43,982 = 43,982 : x
  2. Step 2: Convert to fraction form
    20,426/43,982 = 43,982/x
  3. Step 3: Cross multiply
    20,426x = 43,982 × 43,982
  4. Step 4: Simplify right side
    20,426x = 1,934,416,324
  5. Step 5: Solve for x
    x = 1,934,416,324/20,426
  6. Step 6: Final answer
    x = 94,703.63

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.