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Finding the Fourth Proportional to 8,601.66, 12,910.59 and 4,222.26

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Solution

The fourth proportional to 8,601.66, 12,910.59 and 4,222.26 is: 6,337.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.66 : 12,910.59 = 4,222.26 : x
  2. Step 2: Convert to fraction form
    8,601.66/12,910.59 = 4,222.26/x
  3. Step 3: Cross multiply
    8,601.66x = 12,910.59 × 4,222.26
  4. Step 4: Simplify right side
    8,601.66x = 54,511,867.73
  5. Step 5: Solve for x
    x = 54,511,867.73/8,601.66
  6. Step 6: Final answer
    x = 6,337.37

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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.