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Finding the Third Proportional to 9,980 and 20,536

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Solution

The third proportional to 9,980 and 20,536 is: 42,257.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,980 : 20,536 = 20,536 : x
  2. Step 2: Convert to fraction form
    9,980/20,536 = 20,536/x
  3. Step 3: Cross multiply
    9,980x = 20,536 × 20,536
  4. Step 4: Simplify right side
    9,980x = 421,727,296
  5. Step 5: Solve for x
    x = 421,727,296/9,980
  6. Step 6: Final answer
    x = 42,257.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.