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Finding the Third Proportional to 39,261 and 85,212

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Solution

The third proportional to 39,261 and 85,212 is: 184,943.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,261 : 85,212 = 85,212 : x
  2. Step 2: Convert to fraction form
    39,261/85,212 = 85,212/x
  3. Step 3: Cross multiply
    39,261x = 85,212 × 85,212
  4. Step 4: Simplify right side
    39,261x = 7,261,084,944
  5. Step 5: Solve for x
    x = 7,261,084,944/39,261
  6. Step 6: Final answer
    x = 184,943.96

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.