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Finding the Fourth Proportional to 7,081.88, 10,622.82 and 3,372.86

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Solution

The fourth proportional to 7,081.88, 10,622.82 and 3,372.86 is: 5,059.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.88 : 10,622.82 = 3,372.86 : x
  2. Step 2: Convert to fraction form
    7,081.88/10,622.82 = 3,372.86/x
  3. Step 3: Cross multiply
    7,081.88x = 10,622.82 × 3,372.86
  4. Step 4: Simplify right side
    7,081.88x = 35,829,267.80
  5. Step 5: Solve for x
    x = 35,829,267.80/7,081.88
  6. Step 6: Final answer
    x = 5,059.29

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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.