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Finding the Third Proportional to 21,554 and 45,214

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Solution

The third proportional to 21,554 and 45,214 is: 94,845.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,554 : 45,214 = 45,214 : x
  2. Step 2: Convert to fraction form
    21,554/45,214 = 45,214/x
  3. Step 3: Cross multiply
    21,554x = 45,214 × 45,214
  4. Step 4: Simplify right side
    21,554x = 2,044,305,796
  5. Step 5: Solve for x
    x = 2,044,305,796/21,554
  6. Step 6: Final answer
    x = 94,845.77

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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.