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Finding the Third Proportional to 16,890.75 and 36,236.25

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Solution

The third proportional to 16,890.75 and 36,236.25 is: 77,738.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,890.75 : 36,236.25 = 36,236.25 : x
  2. Step 2: Convert to fraction form
    16,890.75/36,236.25 = 36,236.25/x
  3. Step 3: Cross multiply
    16,890.75x = 36,236.25 × 36,236.25
  4. Step 4: Simplify right side
    16,890.75x = 1,313,065,814.06
  5. Step 5: Solve for x
    x = 1,313,065,814.06/16,890.75
  6. Step 6: Final answer
    x = 77,738.75

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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.