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Finding the Third Proportional to 39,951 and 86,946

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Solution

The third proportional to 39,951 and 86,946 is: 189,221.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,951 : 86,946 = 86,946 : x
  2. Step 2: Convert to fraction form
    39,951/86,946 = 86,946/x
  3. Step 3: Cross multiply
    39,951x = 86,946 × 86,946
  4. Step 4: Simplify right side
    39,951x = 7,559,606,916
  5. Step 5: Solve for x
    x = 7,559,606,916/39,951
  6. Step 6: Final answer
    x = 189,221.97

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.