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Finding the Fourth Proportional to 12,863.44, 19,284.22 and 12,251.08

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Solution

The fourth proportional to 12,863.44, 19,284.22 and 12,251.08 is: 18,366.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,863.44 : 19,284.22 = 12,251.08 : x
  2. Step 2: Convert to fraction form
    12,863.44/19,284.22 = 12,251.08/x
  3. Step 3: Cross multiply
    12,863.44x = 19,284.22 × 12,251.08
  4. Step 4: Simplify right side
    12,863.44x = 236,252,521.96
  5. Step 5: Solve for x
    x = 236,252,521.96/12,863.44
  6. Step 6: Final answer
    x = 18,366.20

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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.