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Finding the Fourth Proportional to 3,653.74, 5,481.42 and 1,704.88

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Solution

The fourth proportional to 3,653.74, 5,481.42 and 1,704.88 is: 2,557.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.74 : 5,481.42 = 1,704.88 : x
  2. Step 2: Convert to fraction form
    3,653.74/5,481.42 = 1,704.88/x
  3. Step 3: Cross multiply
    3,653.74x = 5,481.42 × 1,704.88
  4. Step 4: Simplify right side
    3,653.74x = 9,345,159.90
  5. Step 5: Solve for x
    x = 9,345,159.90/3,653.74
  6. Step 6: Final answer
    x = 2,557.70

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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.