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Finding the Fourth Proportional to 7,198.56, 10,804.23 and 3,690.94

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Solution

The fourth proportional to 7,198.56, 10,804.23 and 3,690.94 is: 5,539.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,198.56 : 10,804.23 = 3,690.94 : x
  2. Step 2: Convert to fraction form
    7,198.56/10,804.23 = 3,690.94/x
  3. Step 3: Cross multiply
    7,198.56x = 10,804.23 × 3,690.94
  4. Step 4: Simplify right side
    7,198.56x = 39,877,764.68
  5. Step 5: Solve for x
    x = 39,877,764.68/7,198.56
  6. Step 6: Final answer
    x = 5,539.69

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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.