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Finding the Fourth Proportional to 18,472.25, 27,712.77 and 5,992.30

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Solution

The fourth proportional to 18,472.25, 27,712.77 and 5,992.30 is: 8,989.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,472.25 : 27,712.77 = 5,992.30 : x
  2. Step 2: Convert to fraction form
    18,472.25/27,712.77 = 5,992.30/x
  3. Step 3: Cross multiply
    18,472.25x = 27,712.77 × 5,992.30
  4. Step 4: Simplify right side
    18,472.25x = 166,063,372.34
  5. Step 5: Solve for x
    x = 166,063,372.34/18,472.25
  6. Step 6: Final answer
    x = 8,989.88

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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.