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Finding the Fourth Proportional to 18,498.42, 25,524.84 and 10,540.80

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Solution

The fourth proportional to 18,498.42, 25,524.84 and 10,540.80 is: 14,544.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,498.42 : 25,524.84 = 10,540.80 : x
  2. Step 2: Convert to fraction form
    18,498.42/25,524.84 = 10,540.80/x
  3. Step 3: Cross multiply
    18,498.42x = 25,524.84 × 10,540.80
  4. Step 4: Simplify right side
    18,498.42x = 269,052,233.47
  5. Step 5: Solve for x
    x = 269,052,233.47/18,498.42
  6. Step 6: Final answer
    x = 14,544.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.