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Finding the Fourth Proportional to 6,311.76, 9,468.84 and 2,849

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Solution

The fourth proportional to 6,311.76, 9,468.84 and 2,849 is: 4,274.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,311.76 : 9,468.84 = 2,849 : x
  2. Step 2: Convert to fraction form
    6,311.76/9,468.84 = 2,849/x
  3. Step 3: Cross multiply
    6,311.76x = 9,468.84 × 2,849
  4. Step 4: Simplify right side
    6,311.76x = 26,976,725.16
  5. Step 5: Solve for x
    x = 26,976,725.16/6,311.76
  6. Step 6: Final answer
    x = 4,274.04

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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.