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Finding the Fourth Proportional to 8,156.67, 12,230.09 and 4,453.76

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Solution

The fourth proportional to 8,156.67, 12,230.09 and 4,453.76 is: 6,677.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.67 : 12,230.09 = 4,453.76 : x
  2. Step 2: Convert to fraction form
    8,156.67/12,230.09 = 4,453.76/x
  3. Step 3: Cross multiply
    8,156.67x = 12,230.09 × 4,453.76
  4. Step 4: Simplify right side
    8,156.67x = 54,469,802.22
  5. Step 5: Solve for x
    x = 54,469,802.22/8,156.67
  6. Step 6: Final answer
    x = 6,677.95

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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.