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Finding the Fourth Proportional to 18,367.44, 27,544.49 and 7,838.58

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Solution

The fourth proportional to 18,367.44, 27,544.49 and 7,838.58 is: 11,755.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,367.44 : 27,544.49 = 7,838.58 : x
  2. Step 2: Convert to fraction form
    18,367.44/27,544.49 = 7,838.58/x
  3. Step 3: Cross multiply
    18,367.44x = 27,544.49 × 7,838.58
  4. Step 4: Simplify right side
    18,367.44x = 215,909,704.45
  5. Step 5: Solve for x
    x = 215,909,704.45/18,367.44
  6. Step 6: Final answer
    x = 11,755.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.