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Finding the Fourth Proportional to 22,406.64, 30,921.42 and 12,197.73

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Solution

The fourth proportional to 22,406.64, 30,921.42 and 12,197.73 is: 16,833.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,406.64 : 30,921.42 = 12,197.73 : x
  2. Step 2: Convert to fraction form
    22,406.64/30,921.42 = 12,197.73/x
  3. Step 3: Cross multiply
    22,406.64x = 30,921.42 × 12,197.73
  4. Step 4: Simplify right side
    22,406.64x = 377,171,132.38
  5. Step 5: Solve for x
    x = 377,171,132.38/22,406.64
  6. Step 6: Final answer
    x = 16,833.01

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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.