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Finding the Fourth Proportional to 18,241.31, 27,350.42 and 7,705.91

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Solution

The fourth proportional to 18,241.31, 27,350.42 and 7,705.91 is: 11,553.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,241.31 : 27,350.42 = 7,705.91 : x
  2. Step 2: Convert to fraction form
    18,241.31/27,350.42 = 7,705.91/x
  3. Step 3: Cross multiply
    18,241.31x = 27,350.42 × 7,705.91
  4. Step 4: Simplify right side
    18,241.31x = 210,759,874.98
  5. Step 5: Solve for x
    x = 210,759,874.98/18,241.31
  6. Step 6: Final answer
    x = 11,553.99

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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.