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Finding the Third Proportional to 21,252 and 33,756

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Solution

The third proportional to 21,252 and 33,756 is: 53,616.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252 : 33,756 = 33,756 : x
  2. Step 2: Convert to fraction form
    21,252/33,756 = 33,756/x
  3. Step 3: Cross multiply
    21,252x = 33,756 × 33,756
  4. Step 4: Simplify right side
    21,252x = 1,139,467,536
  5. Step 5: Solve for x
    x = 1,139,467,536/21,252
  6. Step 6: Final answer
    x = 53,616.96

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.