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Finding the Fourth Proportional to 18,054.83, 27,083.36 and 6,961.58

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Solution

The fourth proportional to 18,054.83, 27,083.36 and 6,961.58 is: 10,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,054.83 : 27,083.36 = 6,961.58 : x
  2. Step 2: Convert to fraction form
    18,054.83/27,083.36 = 6,961.58/x
  3. Step 3: Cross multiply
    18,054.83x = 27,083.36 × 6,961.58
  4. Step 4: Simplify right side
    18,054.83x = 188,542,960.86
  5. Step 5: Solve for x
    x = 188,542,960.86/18,054.83
  6. Step 6: Final answer
    x = 10,442.80

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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.