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Finding the Fourth Proportional to 18,086.40, 27,095.04 and 11,174.40

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Solution

The fourth proportional to 18,086.40, 27,095.04 and 11,174.40 is: 16,740.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,086.40 : 27,095.04 = 11,174.40 : x
  2. Step 2: Convert to fraction form
    18,086.40/27,095.04 = 11,174.40/x
  3. Step 3: Cross multiply
    18,086.40x = 27,095.04 × 11,174.40
  4. Step 4: Simplify right side
    18,086.40x = 302,770,814.98
  5. Step 5: Solve for x
    x = 302,770,814.98/18,086.40
  6. Step 6: Final answer
    x = 16,740.25

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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.