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Finding the Third Proportional to 20,511 and 27,841.50

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Solution

The third proportional to 20,511 and 27,841.50 is: 37,791.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,511 : 27,841.50 = 27,841.50 : x
  2. Step 2: Convert to fraction form
    20,511/27,841.50 = 27,841.50/x
  3. Step 3: Cross multiply
    20,511x = 27,841.50 × 27,841.50
  4. Step 4: Simplify right side
    20,511x = 775,149,122.25
  5. Step 5: Solve for x
    x = 775,149,122.25/20,511
  6. Step 6: Final answer
    x = 37,791.87

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.