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Finding the Third Proportional to 18,625.57 and 40,358.88

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Solution

The third proportional to 18,625.57 and 40,358.88 is: 87,451.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,625.57 : 40,358.88 = 40,358.88 : x
  2. Step 2: Convert to fraction form
    18,625.57/40,358.88 = 40,358.88/x
  3. Step 3: Cross multiply
    18,625.57x = 40,358.88 × 40,358.88
  4. Step 4: Simplify right side
    18,625.57x = 1,628,839,421.87
  5. Step 5: Solve for x
    x = 1,628,839,421.87/18,625.57
  6. Step 6: Final answer
    x = 87,451.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.