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Finding the Fourth Proportional to 18,149.72, 27,234.92 and 7,054.96

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Solution

The fourth proportional to 18,149.72, 27,234.92 and 7,054.96 is: 10,586.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.72 : 27,234.92 = 7,054.96 : x
  2. Step 2: Convert to fraction form
    18,149.72/27,234.92 = 7,054.96/x
  3. Step 3: Cross multiply
    18,149.72x = 27,234.92 × 7,054.96
  4. Step 4: Simplify right side
    18,149.72x = 192,141,271.20
  5. Step 5: Solve for x
    x = 192,141,271.20/18,149.72
  6. Step 6: Final answer
    x = 10,586.46

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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.