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Finding the Fourth Proportional to 3,328.05, 4,983.16 and 1,863.03

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Solution

The fourth proportional to 3,328.05, 4,983.16 and 1,863.03 is: 2,789.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,328.05 : 4,983.16 = 1,863.03 : x
  2. Step 2: Convert to fraction form
    3,328.05/4,983.16 = 1,863.03/x
  3. Step 3: Cross multiply
    3,328.05x = 4,983.16 × 1,863.03
  4. Step 4: Simplify right side
    3,328.05x = 9,283,776.57
  5. Step 5: Solve for x
    x = 9,283,776.57/3,328.05
  6. Step 6: Final answer
    x = 2,789.55

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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.