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Finding the Fourth Proportional to 22,392.92, 33,601.16 and 9,921.56

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Solution

The fourth proportional to 22,392.92, 33,601.16 and 9,921.56 is: 14,887.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,392.92 : 33,601.16 = 9,921.56 : x
  2. Step 2: Convert to fraction form
    22,392.92/33,601.16 = 9,921.56/x
  3. Step 3: Cross multiply
    22,392.92x = 33,601.16 × 9,921.56
  4. Step 4: Simplify right side
    22,392.92x = 333,375,781.81
  5. Step 5: Solve for x
    x = 333,375,781.81/22,392.92
  6. Step 6: Final answer
    x = 14,887.55

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1.5x scale

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.