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Finding the Fourth Proportional to 16,923.92, 23,355.98 and 9,371.78

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Solution

The fourth proportional to 16,923.92, 23,355.98 and 9,371.78 is: 12,933.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,923.92 : 23,355.98 = 9,371.78 : x
  2. Step 2: Convert to fraction form
    16,923.92/23,355.98 = 9,371.78/x
  3. Step 3: Cross multiply
    16,923.92x = 23,355.98 × 9,371.78
  4. Step 4: Simplify right side
    16,923.92x = 218,887,106.24
  5. Step 5: Solve for x
    x = 218,887,106.24/16,923.92
  6. Step 6: Final answer
    x = 12,933.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.