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Finding the Third Proportional to 20,138.63 and 27,654.75

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Solution

The third proportional to 20,138.63 and 27,654.75 is: 37,976.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,138.63 : 27,654.75 = 27,654.75 : x
  2. Step 2: Convert to fraction form
    20,138.63/27,654.75 = 27,654.75/x
  3. Step 3: Cross multiply
    20,138.63x = 27,654.75 × 27,654.75
  4. Step 4: Simplify right side
    20,138.63x = 764,785,197.56
  5. Step 5: Solve for x
    x = 764,785,197.56/20,138.63
  6. Step 6: Final answer
    x = 37,976.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.