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Finding the Fourth Proportional to 33,145.88, 45,741.31 and 18,241.88

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Solution

The fourth proportional to 33,145.88, 45,741.31 and 18,241.88 is: 25,173.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,145.88 : 45,741.31 = 18,241.88 : x
  2. Step 2: Convert to fraction form
    33,145.88/45,741.31 = 18,241.88/x
  3. Step 3: Cross multiply
    33,145.88x = 45,741.31 × 18,241.88
  4. Step 4: Simplify right side
    33,145.88x = 834,407,213.75
  5. Step 5: Solve for x
    x = 834,407,213.75/33,145.88
  6. Step 6: Final answer
    x = 25,173.79

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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.