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Finding the Fourth Proportional to 22,396.28, 33,591.81 and 8,356.79

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Solution

The fourth proportional to 22,396.28, 33,591.81 and 8,356.79 is: 12,534.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,396.28 : 33,591.81 = 8,356.79 : x
  2. Step 2: Convert to fraction form
    22,396.28/33,591.81 = 8,356.79/x
  3. Step 3: Cross multiply
    22,396.28x = 33,591.81 × 8,356.79
  4. Step 4: Simplify right side
    22,396.28x = 280,719,533.93
  5. Step 5: Solve for x
    x = 280,719,533.93/22,396.28
  6. Step 6: Final answer
    x = 12,534.21

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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.