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Finding the Fourth Proportional to 18,241.43, 27,361.15 and 5,591.17

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Solution

The fourth proportional to 18,241.43, 27,361.15 and 5,591.17 is: 8,386.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,241.43 : 27,361.15 = 5,591.17 : x
  2. Step 2: Convert to fraction form
    18,241.43/27,361.15 = 5,591.17/x
  3. Step 3: Cross multiply
    18,241.43x = 27,361.15 × 5,591.17
  4. Step 4: Simplify right side
    18,241.43x = 152,980,758.66
  5. Step 5: Solve for x
    x = 152,980,758.66/18,241.43
  6. Step 6: Final answer
    x = 8,386.45

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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.