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Finding the Third Proportional to 39,212 and 84,568

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Solution

The third proportional to 39,212 and 84,568 is: 182,386.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,212 : 84,568 = 84,568 : x
  2. Step 2: Convert to fraction form
    39,212/84,568 = 84,568/x
  3. Step 3: Cross multiply
    39,212x = 84,568 × 84,568
  4. Step 4: Simplify right side
    39,212x = 7,151,746,624
  5. Step 5: Solve for x
    x = 7,151,746,624/39,212
  6. Step 6: Final answer
    x = 182,386.68

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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.