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Finding the Fourth Proportional to 6,834.38, 9,431.44 and 3,690.56

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Solution

The fourth proportional to 6,834.38, 9,431.44 and 3,690.56 is: 5,092.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,834.38 : 9,431.44 = 3,690.56 : x
  2. Step 2: Convert to fraction form
    6,834.38/9,431.44 = 3,690.56/x
  3. Step 3: Cross multiply
    6,834.38x = 9,431.44 × 3,690.56
  4. Step 4: Simplify right side
    6,834.38x = 34,807,309.56
  5. Step 5: Solve for x
    x = 34,807,309.56/6,834.38
  6. Step 6: Final answer
    x = 5,092.98

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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.