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Finding the Third Proportional to 15,378.75 and 33,183

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Solution

The third proportional to 15,378.75 and 33,183 is: 71,599.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,378.75 : 33,183 = 33,183 : x
  2. Step 2: Convert to fraction form
    15,378.75/33,183 = 33,183/x
  3. Step 3: Cross multiply
    15,378.75x = 33,183 × 33,183
  4. Step 4: Simplify right side
    15,378.75x = 1,101,111,489
  5. Step 5: Solve for x
    x = 1,101,111,489/15,378.75
  6. Step 6: Final answer
    x = 71,599.54

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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.