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Finding the Third Proportional to 39,993 and 85,805

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Solution

The third proportional to 39,993 and 85,805 is: 184,094.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,993 : 85,805 = 85,805 : x
  2. Step 2: Convert to fraction form
    39,993/85,805 = 85,805/x
  3. Step 3: Cross multiply
    39,993x = 85,805 × 85,805
  4. Step 4: Simplify right side
    39,993x = 7,362,498,025
  5. Step 5: Solve for x
    x = 7,362,498,025/39,993
  6. Step 6: Final answer
    x = 184,094.67

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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.