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Finding the Third Proportional to 39,556 and 86,228

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Solution

The third proportional to 39,556 and 86,228 is: 187,968.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,556 : 86,228 = 86,228 : x
  2. Step 2: Convert to fraction form
    39,556/86,228 = 86,228/x
  3. Step 3: Cross multiply
    39,556x = 86,228 × 86,228
  4. Step 4: Simplify right side
    39,556x = 7,435,267,984
  5. Step 5: Solve for x
    x = 7,435,267,984/39,556
  6. Step 6: Final answer
    x = 187,968.15

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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.