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Finding the Fourth Proportional to 16,923.92, 25,391.07 and 7,571.81

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Solution

The fourth proportional to 16,923.92, 25,391.07 and 7,571.81 is: 11,360.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,923.92 : 25,391.07 = 7,571.81 : x
  2. Step 2: Convert to fraction form
    16,923.92/25,391.07 = 7,571.81/x
  3. Step 3: Cross multiply
    16,923.92x = 25,391.07 × 7,571.81
  4. Step 4: Simplify right side
    16,923.92x = 192,256,357.74
  5. Step 5: Solve for x
    x = 192,256,357.74/16,923.92
  6. Step 6: Final answer
    x = 11,360.04

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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.