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Finding the Third Proportional to 10,099.25 and 21,811.75

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Solution

The third proportional to 10,099.25 and 21,811.75 is: 47,107.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,099.25 : 21,811.75 = 21,811.75 : x
  2. Step 2: Convert to fraction form
    10,099.25/21,811.75 = 21,811.75/x
  3. Step 3: Cross multiply
    10,099.25x = 21,811.75 × 21,811.75
  4. Step 4: Simplify right side
    10,099.25x = 475,752,438.06
  5. Step 5: Solve for x
    x = 475,752,438.06/10,099.25
  6. Step 6: Final answer
    x = 47,107.70

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.