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Finding the Fourth Proportional to 3,474.84, 5,209.83 and 1,742.52

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Solution

The fourth proportional to 3,474.84, 5,209.83 and 1,742.52 is: 2,612.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,474.84 : 5,209.83 = 1,742.52 : x
  2. Step 2: Convert to fraction form
    3,474.84/5,209.83 = 1,742.52/x
  3. Step 3: Cross multiply
    3,474.84x = 5,209.83 × 1,742.52
  4. Step 4: Simplify right side
    3,474.84x = 9,078,232.97
  5. Step 5: Solve for x
    x = 9,078,232.97/3,474.84
  6. Step 6: Final answer
    x = 2,612.56

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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.