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Finding the Fourth Proportional to 5,841.67, 8,761.20 and 1,680.75

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Solution

The fourth proportional to 5,841.67, 8,761.20 and 1,680.75 is: 2,520.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,841.67 : 8,761.20 = 1,680.75 : x
  2. Step 2: Convert to fraction form
    5,841.67/8,761.20 = 1,680.75/x
  3. Step 3: Cross multiply
    5,841.67x = 8,761.20 × 1,680.75
  4. Step 4: Simplify right side
    5,841.67x = 14,725,380.60
  5. Step 5: Solve for x
    x = 14,725,380.60/5,841.67
  6. Step 6: Final answer
    x = 2,520.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.