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Finding the Fourth Proportional to 29,863.80, 44,790.80 and 11,138.94

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Solution

The fourth proportional to 29,863.80, 44,790.80 and 11,138.94 is: 16,706.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,863.80 : 44,790.80 = 11,138.94 : x
  2. Step 2: Convert to fraction form
    29,863.80/44,790.80 = 11,138.94/x
  3. Step 3: Cross multiply
    29,863.80x = 44,790.80 × 11,138.94
  4. Step 4: Simplify right side
    29,863.80x = 498,921,978.06
  5. Step 5: Solve for x
    x = 498,921,978.06/29,863.80
  6. Step 6: Final answer
    x = 16,706.58

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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.