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Finding the Fourth Proportional to 18,083.73, 27,104.81 and 6,985.56

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Solution

The fourth proportional to 18,083.73, 27,104.81 and 6,985.56 is: 10,470.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,083.73 : 27,104.81 = 6,985.56 : x
  2. Step 2: Convert to fraction form
    18,083.73/27,104.81 = 6,985.56/x
  3. Step 3: Cross multiply
    18,083.73x = 27,104.81 × 6,985.56
  4. Step 4: Simplify right side
    18,083.73x = 189,342,241.62
  5. Step 5: Solve for x
    x = 189,342,241.62/18,083.73
  6. Step 6: Final answer
    x = 10,470.31

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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.