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Finding the Fourth Proportional to 16,921.82, 23,351.82 and 9,367.99

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Solution

The fourth proportional to 16,921.82, 23,351.82 and 9,367.99 is: 12,927.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921.82 : 23,351.82 = 9,367.99 : x
  2. Step 2: Convert to fraction form
    16,921.82/23,351.82 = 9,367.99/x
  3. Step 3: Cross multiply
    16,921.82x = 23,351.82 × 9,367.99
  4. Step 4: Simplify right side
    16,921.82x = 218,759,616.24
  5. Step 5: Solve for x
    x = 218,759,616.24/16,921.82
  6. Step 6: Final answer
    x = 12,927.66

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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.