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Finding the Fourth Proportional to 3,385.44, 5,074.56 and 1,651.68

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Solution

The fourth proportional to 3,385.44, 5,074.56 and 1,651.68 is: 2,475.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.44 : 5,074.56 = 1,651.68 : x
  2. Step 2: Convert to fraction form
    3,385.44/5,074.56 = 1,651.68/x
  3. Step 3: Cross multiply
    3,385.44x = 5,074.56 × 1,651.68
  4. Step 4: Simplify right side
    3,385.44x = 8,381,549.26
  5. Step 5: Solve for x
    x = 8,381,549.26/3,385.44
  6. Step 6: Final answer
    x = 2,475.76

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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.