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Finding the Third Proportional to 17,187.75 and 36,108

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Solution

The third proportional to 17,187.75 and 36,108 is: 75,855.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,187.75 : 36,108 = 36,108 : x
  2. Step 2: Convert to fraction form
    17,187.75/36,108 = 36,108/x
  3. Step 3: Cross multiply
    17,187.75x = 36,108 × 36,108
  4. Step 4: Simplify right side
    17,187.75x = 1,303,787,664
  5. Step 5: Solve for x
    x = 1,303,787,664/17,187.75
  6. Step 6: Final answer
    x = 75,855.63

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.