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Finding the Fourth Proportional to 18,540.92, 27,633 and 18,245.68

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Solution

The fourth proportional to 18,540.92, 27,633 and 18,245.68 is: 27,192.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.92 : 27,633 = 18,245.68 : x
  2. Step 2: Convert to fraction form
    18,540.92/27,633 = 18,245.68/x
  3. Step 3: Cross multiply
    18,540.92x = 27,633 × 18,245.68
  4. Step 4: Simplify right side
    18,540.92x = 504,182,875.44
  5. Step 5: Solve for x
    x = 504,182,875.44/18,540.92
  6. Step 6: Final answer
    x = 27,192.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.