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Finding the Fourth Proportional to 18,251.10, 27,389.16 and 12,014.10

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Solution

The fourth proportional to 18,251.10, 27,389.16 and 12,014.10 is: 18,029.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.10 : 27,389.16 = 12,014.10 : x
  2. Step 2: Convert to fraction form
    18,251.10/27,389.16 = 12,014.10/x
  3. Step 3: Cross multiply
    18,251.10x = 27,389.16 × 12,014.10
  4. Step 4: Simplify right side
    18,251.10x = 329,056,107.16
  5. Step 5: Solve for x
    x = 329,056,107.16/18,251.10
  6. Step 6: Final answer
    x = 18,029.38

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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.