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Finding the Fourth Proportional to 8,806.92, 12,151.62 and 5,974.80

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Solution

The fourth proportional to 8,806.92, 12,151.62 and 5,974.80 is: 8,243.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.92 : 12,151.62 = 5,974.80 : x
  2. Step 2: Convert to fraction form
    8,806.92/12,151.62 = 5,974.80/x
  3. Step 3: Cross multiply
    8,806.92x = 12,151.62 × 5,974.80
  4. Step 4: Simplify right side
    8,806.92x = 72,603,499.18
  5. Step 5: Solve for x
    x = 72,603,499.18/8,806.92
  6. Step 6: Final answer
    x = 8,243.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.