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Finding the Fourth Proportional to 6,241.89, 8,613.87 and 3,409.34

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Solution

The fourth proportional to 6,241.89, 8,613.87 and 3,409.34 is: 4,704.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,241.89 : 8,613.87 = 3,409.34 : x
  2. Step 2: Convert to fraction form
    6,241.89/8,613.87 = 3,409.34/x
  3. Step 3: Cross multiply
    6,241.89x = 8,613.87 × 3,409.34
  4. Step 4: Simplify right side
    6,241.89x = 29,367,603.02
  5. Step 5: Solve for x
    x = 29,367,603.02/6,241.89
  6. Step 6: Final answer
    x = 4,704.93

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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.