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Finding the Third Proportional to 18,612.28 and 38,488.92

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Solution

The third proportional to 18,612.28 and 38,488.92 is: 79,592.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.28 : 38,488.92 = 38,488.92 : x
  2. Step 2: Convert to fraction form
    18,612.28/38,488.92 = 38,488.92/x
  3. Step 3: Cross multiply
    18,612.28x = 38,488.92 × 38,488.92
  4. Step 4: Simplify right side
    18,612.28x = 1,481,397,107.10
  5. Step 5: Solve for x
    x = 1,481,397,107.10/18,612.28
  6. Step 6: Final answer
    x = 79,592.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.