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Finding the Fourth Proportional to 12,436.71, 18,660.02 and 5,863.35

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Solution

The fourth proportional to 12,436.71, 18,660.02 and 5,863.35 is: 8,797.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.71 : 18,660.02 = 5,863.35 : x
  2. Step 2: Convert to fraction form
    12,436.71/18,660.02 = 5,863.35/x
  3. Step 3: Cross multiply
    12,436.71x = 18,660.02 × 5,863.35
  4. Step 4: Simplify right side
    12,436.71x = 109,410,198.95
  5. Step 5: Solve for x
    x = 109,410,198.95/12,436.71
  6. Step 6: Final answer
    x = 8,797.36

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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.