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Finding the Fourth Proportional to 8,385.93, 12,580.41 and 3,452.88

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Solution

The fourth proportional to 8,385.93, 12,580.41 and 3,452.88 is: 5,179.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.93 : 12,580.41 = 3,452.88 : x
  2. Step 2: Convert to fraction form
    8,385.93/12,580.41 = 3,452.88/x
  3. Step 3: Cross multiply
    8,385.93x = 12,580.41 × 3,452.88
  4. Step 4: Simplify right side
    8,385.93x = 43,438,635.44
  5. Step 5: Solve for x
    x = 43,438,635.44/8,385.93
  6. Step 6: Final answer
    x = 5,179.94

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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.