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Finding the Fourth Proportional to 16,751, 25,128.22 and 4,439

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Solution

The fourth proportional to 16,751, 25,128.22 and 4,439 is: 6,658.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,751 : 25,128.22 = 4,439 : x
  2. Step 2: Convert to fraction form
    16,751/25,128.22 = 4,439/x
  3. Step 3: Cross multiply
    16,751x = 25,128.22 × 4,439
  4. Step 4: Simplify right side
    16,751x = 111,544,168.58
  5. Step 5: Solve for x
    x = 111,544,168.58/16,751
  6. Step 6: Final answer
    x = 6,658.96

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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.