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Finding the Fourth Proportional to 2,480.95, 3,720.68 and 1,093.92

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Solution

The fourth proportional to 2,480.95, 3,720.68 and 1,093.92 is: 1,640.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.95 : 3,720.68 = 1,093.92 : x
  2. Step 2: Convert to fraction form
    2,480.95/3,720.68 = 1,093.92/x
  3. Step 3: Cross multiply
    2,480.95x = 3,720.68 × 1,093.92
  4. Step 4: Simplify right side
    2,480.95x = 4,070,138.03
  5. Step 5: Solve for x
    x = 4,070,138.03/2,480.95
  6. Step 6: Final answer
    x = 1,640.56

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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.