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Finding the Fourth Proportional to 5,936.32, 8,193.12 and 3,578.64

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Solution

The fourth proportional to 5,936.32, 8,193.12 and 3,578.64 is: 4,939.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,936.32 : 8,193.12 = 3,578.64 : x
  2. Step 2: Convert to fraction form
    5,936.32/8,193.12 = 3,578.64/x
  3. Step 3: Cross multiply
    5,936.32x = 8,193.12 × 3,578.64
  4. Step 4: Simplify right side
    5,936.32x = 29,320,226.96
  5. Step 5: Solve for x
    x = 29,320,226.96/5,936.32
  6. Step 6: Final answer
    x = 4,939.13

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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.