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Finding the Third Proportional to 9,968 and 19,680

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Solution

The third proportional to 9,968 and 19,680 is: 38,854.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,968 : 19,680 = 19,680 : x
  2. Step 2: Convert to fraction form
    9,968/19,680 = 19,680/x
  3. Step 3: Cross multiply
    9,968x = 19,680 × 19,680
  4. Step 4: Simplify right side
    9,968x = 387,302,400
  5. Step 5: Solve for x
    x = 387,302,400/9,968
  6. Step 6: Final answer
    x = 38,854.57

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.