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Finding the Third Proportional to 9,898 and 20,756

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Solution

The third proportional to 9,898 and 20,756 is: 43,525.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,898 : 20,756 = 20,756 : x
  2. Step 2: Convert to fraction form
    9,898/20,756 = 20,756/x
  3. Step 3: Cross multiply
    9,898x = 20,756 × 20,756
  4. Step 4: Simplify right side
    9,898x = 430,811,536
  5. Step 5: Solve for x
    x = 430,811,536/9,898
  6. Step 6: Final answer
    x = 43,525.11

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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.