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Finding the Fourth Proportional to 8,568.46, 12,847.92 and 2,643.67

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Solution

The fourth proportional to 8,568.46, 12,847.92 and 2,643.67 is: 3,964.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,568.46 : 12,847.92 = 2,643.67 : x
  2. Step 2: Convert to fraction form
    8,568.46/12,847.92 = 2,643.67/x
  3. Step 3: Cross multiply
    8,568.46x = 12,847.92 × 2,643.67
  4. Step 4: Simplify right side
    8,568.46x = 33,965,586.51
  5. Step 5: Solve for x
    x = 33,965,586.51/8,568.46
  6. Step 6: Final answer
    x = 3,964.02

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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.