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Finding the Fourth Proportional to 6,057.96, 9,087.02 and 3,991.20

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Solution

The fourth proportional to 6,057.96, 9,087.02 and 3,991.20 is: 5,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,057.96 : 9,087.02 = 3,991.20 : x
  2. Step 2: Convert to fraction form
    6,057.96/9,087.02 = 3,991.20/x
  3. Step 3: Cross multiply
    6,057.96x = 9,087.02 × 3,991.20
  4. Step 4: Simplify right side
    6,057.96x = 36,268,094.27
  5. Step 5: Solve for x
    x = 36,268,094.27/6,057.96
  6. Step 6: Final answer
    x = 5,986.85

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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.