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Finding the Fourth Proportional to 60,115.31, 90,170.42 and 15,741.08

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Solution

The fourth proportional to 60,115.31, 90,170.42 and 15,741.08 is: 23,610.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,115.31 : 90,170.42 = 15,741.08 : x
  2. Step 2: Convert to fraction form
    60,115.31/90,170.42 = 15,741.08/x
  3. Step 3: Cross multiply
    60,115.31x = 90,170.42 × 15,741.08
  4. Step 4: Simplify right side
    60,115.31x = 1,419,380,110.64
  5. Step 5: Solve for x
    x = 1,419,380,110.64/60,115.31
  6. Step 6: Final answer
    x = 23,610.96

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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.