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Finding the Third Proportional to 9,882 and 20,668.50

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Solution

The third proportional to 9,882 and 20,668.50 is: 43,228.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,882 : 20,668.50 = 20,668.50 : x
  2. Step 2: Convert to fraction form
    9,882/20,668.50 = 20,668.50/x
  3. Step 3: Cross multiply
    9,882x = 20,668.50 × 20,668.50
  4. Step 4: Simplify right side
    9,882x = 427,186,892.25
  5. Step 5: Solve for x
    x = 427,186,892.25/9,882
  6. Step 6: Final answer
    x = 43,228.79

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.