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Finding the Fourth Proportional to 13,616.14, 18,797.43 and 9,163.30

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Solution

The fourth proportional to 13,616.14, 18,797.43 and 9,163.30 is: 12,650.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,616.14 : 18,797.43 = 9,163.30 : x
  2. Step 2: Convert to fraction form
    13,616.14/18,797.43 = 9,163.30/x
  3. Step 3: Cross multiply
    13,616.14x = 18,797.43 × 9,163.30
  4. Step 4: Simplify right side
    13,616.14x = 172,246,490.32
  5. Step 5: Solve for x
    x = 172,246,490.32/13,616.14
  6. Step 6: Final answer
    x = 12,650.17

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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.