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Finding the Fourth Proportional to 44,081, 66,121.50 and 11,249

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Solution

The fourth proportional to 44,081, 66,121.50 and 11,249 is: 16,873.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,081 : 66,121.50 = 11,249 : x
  2. Step 2: Convert to fraction form
    44,081/66,121.50 = 11,249/x
  3. Step 3: Cross multiply
    44,081x = 66,121.50 × 11,249
  4. Step 4: Simplify right side
    44,081x = 743,800,753.50
  5. Step 5: Solve for x
    x = 743,800,753.50/44,081
  6. Step 6: Final answer
    x = 16,873.50

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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.