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Finding the Third Proportional to 39,864.50 and 86,735

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Solution

The third proportional to 39,864.50 and 86,735 is: 188,713.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,864.50 : 86,735 = 86,735 : x
  2. Step 2: Convert to fraction form
    39,864.50/86,735 = 86,735/x
  3. Step 3: Cross multiply
    39,864.50x = 86,735 × 86,735
  4. Step 4: Simplify right side
    39,864.50x = 7,522,960,225
  5. Step 5: Solve for x
    x = 7,522,960,225/39,864.50
  6. Step 6: Final answer
    x = 188,713.27

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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.