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Finding the Fourth Proportional to 3,398.95, 5,093.97 and 1,839.30

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Solution

The fourth proportional to 3,398.95, 5,093.97 and 1,839.30 is: 2,756.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.95 : 5,093.97 = 1,839.30 : x
  2. Step 2: Convert to fraction form
    3,398.95/5,093.97 = 1,839.30/x
  3. Step 3: Cross multiply
    3,398.95x = 5,093.97 × 1,839.30
  4. Step 4: Simplify right side
    3,398.95x = 9,369,339.02
  5. Step 5: Solve for x
    x = 9,369,339.02/3,398.95
  6. Step 6: Final answer
    x = 2,756.54

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1.5x scale

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.