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Finding the Fourth Proportional to 5,757.96, 8,635.14 and 1,861.56

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Solution

The fourth proportional to 5,757.96, 8,635.14 and 1,861.56 is: 2,791.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,757.96 : 8,635.14 = 1,861.56 : x
  2. Step 2: Convert to fraction form
    5,757.96/8,635.14 = 1,861.56/x
  3. Step 3: Cross multiply
    5,757.96x = 8,635.14 × 1,861.56
  4. Step 4: Simplify right side
    5,757.96x = 16,074,831.22
  5. Step 5: Solve for x
    x = 16,074,831.22/5,757.96
  6. Step 6: Final answer
    x = 2,791.76

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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.