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Finding the Fourth Proportional to 18,180.86, 27,265.41 and 7,084.80

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Solution

The fourth proportional to 18,180.86, 27,265.41 and 7,084.80 is: 10,624.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.86 : 27,265.41 = 7,084.80 : x
  2. Step 2: Convert to fraction form
    18,180.86/27,265.41 = 7,084.80/x
  3. Step 3: Cross multiply
    18,180.86x = 27,265.41 × 7,084.80
  4. Step 4: Simplify right side
    18,180.86x = 193,169,976.77
  5. Step 5: Solve for x
    x = 193,169,976.77/18,180.86
  6. Step 6: Final answer
    x = 10,624.91

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.