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Finding the Fourth Proportional to 3,370.68, 4,651.20 and 1,974.24

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Solution

The fourth proportional to 3,370.68, 4,651.20 and 1,974.24 is: 2,724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370.68 : 4,651.20 = 1,974.24 : x
  2. Step 2: Convert to fraction form
    3,370.68/4,651.20 = 1,974.24/x
  3. Step 3: Cross multiply
    3,370.68x = 4,651.20 × 1,974.24
  4. Step 4: Simplify right side
    3,370.68x = 9,182,585.09
  5. Step 5: Solve for x
    x = 9,182,585.09/3,370.68
  6. Step 6: Final answer
    x = 2,724.25

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Similar ratio
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1.5x scale

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.