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Finding the Third Proportional to 21,474 and 33,021

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Solution

The third proportional to 21,474 and 33,021 is: 50,777.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474 : 33,021 = 33,021 : x
  2. Step 2: Convert to fraction form
    21,474/33,021 = 33,021/x
  3. Step 3: Cross multiply
    21,474x = 33,021 × 33,021
  4. Step 4: Simplify right side
    21,474x = 1,090,386,441
  5. Step 5: Solve for x
    x = 1,090,386,441/21,474
  6. Step 6: Final answer
    x = 50,777.05

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.