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Finding the Fourth Proportional to 6,847.74, 9,449.46 and 3,863.70

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Solution

The fourth proportional to 6,847.74, 9,449.46 and 3,863.70 is: 5,331.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,847.74 : 9,449.46 = 3,863.70 : x
  2. Step 2: Convert to fraction form
    6,847.74/9,449.46 = 3,863.70/x
  3. Step 3: Cross multiply
    6,847.74x = 9,449.46 × 3,863.70
  4. Step 4: Simplify right side
    6,847.74x = 36,509,878.60
  5. Step 5: Solve for x
    x = 36,509,878.60/6,847.74
  6. Step 6: Final answer
    x = 5,331.67

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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.