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Finding the Fourth Proportional to 16,747.92, 25,121.88 and 7,385.94

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Solution

The fourth proportional to 16,747.92, 25,121.88 and 7,385.94 is: 11,078.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,747.92 : 25,121.88 = 7,385.94 : x
  2. Step 2: Convert to fraction form
    16,747.92/25,121.88 = 7,385.94/x
  3. Step 3: Cross multiply
    16,747.92x = 25,121.88 × 7,385.94
  4. Step 4: Simplify right side
    16,747.92x = 185,548,698.37
  5. Step 5: Solve for x
    x = 185,548,698.37/16,747.92
  6. Step 6: Final answer
    x = 11,078.91

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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.