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Finding the Third Proportional to 18,537.94 and 39,991.88

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Solution

The third proportional to 18,537.94 and 39,991.88 is: 86,274.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,537.94 : 39,991.88 = 39,991.88 : x
  2. Step 2: Convert to fraction form
    18,537.94/39,991.88 = 39,991.88/x
  3. Step 3: Cross multiply
    18,537.94x = 39,991.88 × 39,991.88
  4. Step 4: Simplify right side
    18,537.94x = 1,599,350,066.02
  5. Step 5: Solve for x
    x = 1,599,350,066.02/18,537.94
  6. Step 6: Final answer
    x = 86,274.43

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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.