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Finding the Fourth Proportional to 18,241.96, 27,375.22 and 7,147.26

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Solution

The fourth proportional to 18,241.96, 27,375.22 and 7,147.26 is: 10,725.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,241.96 : 27,375.22 = 7,147.26 : x
  2. Step 2: Convert to fraction form
    18,241.96/27,375.22 = 7,147.26/x
  3. Step 3: Cross multiply
    18,241.96x = 27,375.22 × 7,147.26
  4. Step 4: Simplify right side
    18,241.96x = 195,657,814.90
  5. Step 5: Solve for x
    x = 195,657,814.90/18,241.96
  6. Step 6: Final answer
    x = 10,725.70

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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.