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Finding the Fourth Proportional to 22,318.72, 33,480.64 and 6,737.28

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Solution

The fourth proportional to 22,318.72, 33,480.64 and 6,737.28 is: 10,106.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,318.72 : 33,480.64 = 6,737.28 : x
  2. Step 2: Convert to fraction form
    22,318.72/33,480.64 = 6,737.28/x
  3. Step 3: Cross multiply
    22,318.72x = 33,480.64 × 6,737.28
  4. Step 4: Simplify right side
    22,318.72x = 225,568,446.26
  5. Step 5: Solve for x
    x = 225,568,446.26/22,318.72
  6. Step 6: Final answer
    x = 10,106.69

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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.