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Finding the Third Proportional to 4,969.69 and 10,918.97

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Solution

The third proportional to 4,969.69 and 10,918.97 is: 23,990.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,969.69 : 10,918.97 = 10,918.97 : x
  2. Step 2: Convert to fraction form
    4,969.69/10,918.97 = 10,918.97/x
  3. Step 3: Cross multiply
    4,969.69x = 10,918.97 × 10,918.97
  4. Step 4: Simplify right side
    4,969.69x = 119,223,878.56
  5. Step 5: Solve for x
    x = 119,223,878.56/4,969.69
  6. Step 6: Final answer
    x = 23,990.22

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.