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Finding the Fourth Proportional to 22,138.92, 30,551.71 and 12,202.92

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Solution

The fourth proportional to 22,138.92, 30,551.71 and 12,202.92 is: 16,840.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,138.92 : 30,551.71 = 12,202.92 : x
  2. Step 2: Convert to fraction form
    22,138.92/30,551.71 = 12,202.92/x
  3. Step 3: Cross multiply
    22,138.92x = 30,551.71 × 12,202.92
  4. Step 4: Simplify right side
    22,138.92x = 372,820,072.99
  5. Step 5: Solve for x
    x = 372,820,072.99/22,138.92
  6. Step 6: Final answer
    x = 16,840.03

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Double scale
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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.