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Finding the Fourth Proportional to 6,241.38, 8,613.11 and 3,446.88

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Solution

The fourth proportional to 6,241.38, 8,613.11 and 3,446.88 is: 4,756.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,241.38 : 8,613.11 = 3,446.88 : x
  2. Step 2: Convert to fraction form
    6,241.38/8,613.11 = 3,446.88/x
  3. Step 3: Cross multiply
    6,241.38x = 8,613.11 × 3,446.88
  4. Step 4: Simplify right side
    6,241.38x = 29,688,296.30
  5. Step 5: Solve for x
    x = 29,688,296.30/6,241.38
  6. Step 6: Final answer
    x = 4,756.69

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Find fourth proportional to 3,120.69, 4,306.55 and 1,723.44
Half scale
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Double 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.