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Finding the Fourth Proportional to 16,794.18, 25,187.94 and 8,472.06

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Solution

The fourth proportional to 16,794.18, 25,187.94 and 8,472.06 is: 12,706.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,794.18 : 25,187.94 = 8,472.06 : x
  2. Step 2: Convert to fraction form
    16,794.18/25,187.94 = 8,472.06/x
  3. Step 3: Cross multiply
    16,794.18x = 25,187.94 × 8,472.06
  4. Step 4: Simplify right side
    16,794.18x = 213,393,738.96
  5. Step 5: Solve for x
    x = 213,393,738.96/16,794.18
  6. Step 6: Final answer
    x = 12,706.41

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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.