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Finding the Third Proportional to 18,786.94 and 27,621

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Solution

The third proportional to 18,786.94 and 27,621 is: 40,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.94 : 27,621 = 27,621 : x
  2. Step 2: Convert to fraction form
    18,786.94/27,621 = 27,621/x
  3. Step 3: Cross multiply
    18,786.94x = 27,621 × 27,621
  4. Step 4: Simplify right side
    18,786.94x = 762,919,641
  5. Step 5: Solve for x
    x = 762,919,641/18,786.94
  6. Step 6: Final answer
    x = 40,609.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.