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Finding the Third Proportional to 39,236.75 and 85,809.25

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Solution

The third proportional to 39,236.75 and 85,809.25 is: 187,661.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,236.75 : 85,809.25 = 85,809.25 : x
  2. Step 2: Convert to fraction form
    39,236.75/85,809.25 = 85,809.25/x
  3. Step 3: Cross multiply
    39,236.75x = 85,809.25 × 85,809.25
  4. Step 4: Simplify right side
    39,236.75x = 7,363,227,385.56
  5. Step 5: Solve for x
    x = 7,363,227,385.56/39,236.75
  6. Step 6: Final answer
    x = 187,661.50

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.