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Finding the Fourth Proportional to 18,238.10, 27,410.88 and 15,137.96

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Solution

The fourth proportional to 18,238.10, 27,410.88 and 15,137.96 is: 22,751.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.10 : 27,410.88 = 15,137.96 : x
  2. Step 2: Convert to fraction form
    18,238.10/27,410.88 = 15,137.96/x
  3. Step 3: Cross multiply
    18,238.10x = 27,410.88 × 15,137.96
  4. Step 4: Simplify right side
    18,238.10x = 414,944,805.00
  5. Step 5: Solve for x
    x = 414,944,805.00/18,238.10
  6. Step 6: Final answer
    x = 22,751.54

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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.