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Finding the Fourth Proportional to 12,369.92, 18,552.44 and 3,604.91

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Solution

The fourth proportional to 12,369.92, 18,552.44 and 3,604.91 is: 5,406.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369.92 : 18,552.44 = 3,604.91 : x
  2. Step 2: Convert to fraction form
    12,369.92/18,552.44 = 3,604.91/x
  3. Step 3: Cross multiply
    12,369.92x = 18,552.44 × 3,604.91
  4. Step 4: Simplify right side
    12,369.92x = 66,879,792.73
  5. Step 5: Solve for x
    x = 66,879,792.73/12,369.92
  6. Step 6: Final answer
    x = 5,406.65

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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.