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Finding the Third Proportional to 9,866 and 20,956

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Solution

The third proportional to 9,866 and 20,956 is: 44,511.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866 : 20,956 = 20,956 : x
  2. Step 2: Convert to fraction form
    9,866/20,956 = 20,956/x
  3. Step 3: Cross multiply
    9,866x = 20,956 × 20,956
  4. Step 4: Simplify right side
    9,866x = 439,153,936
  5. Step 5: Solve for x
    x = 439,153,936/9,866
  6. Step 6: Final answer
    x = 44,511.85

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.