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Finding the Third Proportional to 4,267.69 and 9,172.69

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Solution

The third proportional to 4,267.69 and 9,172.69 is: 19,715.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,267.69 : 9,172.69 = 9,172.69 : x
  2. Step 2: Convert to fraction form
    4,267.69/9,172.69 = 9,172.69/x
  3. Step 3: Cross multiply
    4,267.69x = 9,172.69 × 9,172.69
  4. Step 4: Simplify right side
    4,267.69x = 84,138,195.97
  5. Step 5: Solve for x
    x = 84,138,195.97/4,267.69
  6. Step 6: Final answer
    x = 19,715.17

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.