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Finding the Fourth Proportional to 22,380.28, 33,549.44 and 7,578.86

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Solution

The fourth proportional to 22,380.28, 33,549.44 and 7,578.86 is: 11,361.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,380.28 : 33,549.44 = 7,578.86 : x
  2. Step 2: Convert to fraction form
    22,380.28/33,549.44 = 7,578.86/x
  3. Step 3: Cross multiply
    22,380.28x = 33,549.44 × 7,578.86
  4. Step 4: Simplify right side
    22,380.28x = 254,266,508.84
  5. Step 5: Solve for x
    x = 254,266,508.84/22,380.28
  6. Step 6: Final answer
    x = 11,361.19

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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.