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Finding the Fourth Proportional to 18,163.26, 27,293.49 and 15,877.44

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Solution

The fourth proportional to 18,163.26, 27,293.49 and 15,877.44 is: 23,858.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.26 : 27,293.49 = 15,877.44 : x
  2. Step 2: Convert to fraction form
    18,163.26/27,293.49 = 15,877.44/x
  3. Step 3: Cross multiply
    18,163.26x = 27,293.49 × 15,877.44
  4. Step 4: Simplify right side
    18,163.26x = 433,350,749.87
  5. Step 5: Solve for x
    x = 433,350,749.87/18,163.26
  6. Step 6: Final answer
    x = 23,858.64

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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.