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Finding the Fourth Proportional to 18,361.44, 27,535.50 and 10,047.60

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Solution

The fourth proportional to 18,361.44, 27,535.50 and 10,047.60 is: 15,067.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,361.44 : 27,535.50 = 10,047.60 : x
  2. Step 2: Convert to fraction form
    18,361.44/27,535.50 = 10,047.60/x
  3. Step 3: Cross multiply
    18,361.44x = 27,535.50 × 10,047.60
  4. Step 4: Simplify right side
    18,361.44x = 276,665,689.80
  5. Step 5: Solve for x
    x = 276,665,689.80/18,361.44
  6. Step 6: Final answer
    x = 15,067.76

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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.