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Finding the Third Proportional to 39,236.75 and 50,378.75

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Solution

The third proportional to 39,236.75 and 50,378.75 is: 64,684.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,236.75 : 50,378.75 = 50,378.75 : x
  2. Step 2: Convert to fraction form
    39,236.75/50,378.75 = 50,378.75/x
  3. Step 3: Cross multiply
    39,236.75x = 50,378.75 × 50,378.75
  4. Step 4: Simplify right side
    39,236.75x = 2,538,018,451.56
  5. Step 5: Solve for x
    x = 2,538,018,451.56/39,236.75
  6. Step 6: Final answer
    x = 64,684.73

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.