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Finding the Third Proportional to 17,043.75 and 18,825.75

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Solution

The third proportional to 17,043.75 and 18,825.75 is: 20,794.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,043.75 : 18,825.75 = 18,825.75 : x
  2. Step 2: Convert to fraction form
    17,043.75/18,825.75 = 18,825.75/x
  3. Step 3: Cross multiply
    17,043.75x = 18,825.75 × 18,825.75
  4. Step 4: Simplify right side
    17,043.75x = 354,408,863.06
  5. Step 5: Solve for x
    x = 354,408,863.06/17,043.75
  6. Step 6: Final answer
    x = 20,794.07

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.