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Finding the Fourth Proportional to 11,245.52, 16,859.16 and 8,466.86

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Solution

The fourth proportional to 11,245.52, 16,859.16 and 8,466.86 is: 12,693.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.52 : 16,859.16 = 8,466.86 : x
  2. Step 2: Convert to fraction form
    11,245.52/16,859.16 = 8,466.86/x
  3. Step 3: Cross multiply
    11,245.52x = 16,859.16 × 8,466.86
  4. Step 4: Simplify right side
    11,245.52x = 142,744,147.44
  5. Step 5: Solve for x
    x = 142,744,147.44/11,245.52
  6. Step 6: Final answer
    x = 12,693.42

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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.