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Finding the Third Proportional to 39,964 and 86,161

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Solution

The third proportional to 39,964 and 86,161 is: 185,760.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,964 : 86,161 = 86,161 : x
  2. Step 2: Convert to fraction form
    39,964/86,161 = 86,161/x
  3. Step 3: Cross multiply
    39,964x = 86,161 × 86,161
  4. Step 4: Simplify right side
    39,964x = 7,423,717,921
  5. Step 5: Solve for x
    x = 7,423,717,921/39,964
  6. Step 6: Final answer
    x = 185,760.13

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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.