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Finding the Fourth Proportional to 6,235.68, 8,605.68 and 3,997.44

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Solution

The fourth proportional to 6,235.68, 8,605.68 and 3,997.44 is: 5,516.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,235.68 : 8,605.68 = 3,997.44 : x
  2. Step 2: Convert to fraction form
    6,235.68/8,605.68 = 3,997.44/x
  3. Step 3: Cross multiply
    6,235.68x = 8,605.68 × 3,997.44
  4. Step 4: Simplify right side
    6,235.68x = 34,400,689.46
  5. Step 5: Solve for x
    x = 34,400,689.46/6,235.68
  6. Step 6: Final answer
    x = 5,516.75

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Half scale
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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.