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Finding the Fourth Proportional to 17,998.38, 26,991.06 and 7,610.94

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Solution

The fourth proportional to 17,998.38, 26,991.06 and 7,610.94 is: 11,413.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,998.38 : 26,991.06 = 7,610.94 : x
  2. Step 2: Convert to fraction form
    17,998.38/26,991.06 = 7,610.94/x
  3. Step 3: Cross multiply
    17,998.38x = 26,991.06 × 7,610.94
  4. Step 4: Simplify right side
    17,998.38x = 205,427,338.20
  5. Step 5: Solve for x
    x = 205,427,338.20/17,998.38
  6. Step 6: Final answer
    x = 11,413.66

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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.