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Finding the Fourth Proportional to 12,227.09, 16,873.92 and 6,921.99

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Solution

The fourth proportional to 12,227.09, 16,873.92 and 6,921.99 is: 9,552.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,227.09 : 16,873.92 = 6,921.99 : x
  2. Step 2: Convert to fraction form
    12,227.09/16,873.92 = 6,921.99/x
  3. Step 3: Cross multiply
    12,227.09x = 16,873.92 × 6,921.99
  4. Step 4: Simplify right side
    12,227.09x = 116,801,105.50
  5. Step 5: Solve for x
    x = 116,801,105.50/12,227.09
  6. Step 6: Final answer
    x = 9,552.65

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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.