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Finding the Fourth Proportional to 3,691.94, 5,513.44 and 3,244.82

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Solution

The fourth proportional to 3,691.94, 5,513.44 and 3,244.82 is: 4,845.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.94 : 5,513.44 = 3,244.82 : x
  2. Step 2: Convert to fraction form
    3,691.94/5,513.44 = 3,244.82/x
  3. Step 3: Cross multiply
    3,691.94x = 5,513.44 × 3,244.82
  4. Step 4: Simplify right side
    3,691.94x = 17,890,120.38
  5. Step 5: Solve for x
    x = 17,890,120.38/3,691.94
  6. Step 6: Final answer
    x = 4,845.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.