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Finding the Fourth Proportional to 12,396.88, 18,587.24 and 4,497.92

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Solution

The fourth proportional to 12,396.88, 18,587.24 and 4,497.92 is: 6,743.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,396.88 : 18,587.24 = 4,497.92 : x
  2. Step 2: Convert to fraction form
    12,396.88/18,587.24 = 4,497.92/x
  3. Step 3: Cross multiply
    12,396.88x = 18,587.24 × 4,497.92
  4. Step 4: Simplify right side
    12,396.88x = 83,603,896.05
  5. Step 5: Solve for x
    x = 83,603,896.05/12,396.88
  6. Step 6: Final answer
    x = 6,743.95

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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.