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Finding the Fourth Proportional to 4,863.36, 6,711.84 and 3,000

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Solution

The fourth proportional to 4,863.36, 6,711.84 and 3,000 is: 4,140.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,863.36 : 6,711.84 = 3,000 : x
  2. Step 2: Convert to fraction form
    4,863.36/6,711.84 = 3,000/x
  3. Step 3: Cross multiply
    4,863.36x = 6,711.84 × 3,000
  4. Step 4: Simplify right side
    4,863.36x = 20,135,520
  5. Step 5: Solve for x
    x = 20,135,520/4,863.36
  6. Step 6: Final answer
    x = 4,140.25

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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.