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Finding the Fourth Proportional to 35,805.96, 49,413.78 and 19,891.92

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Solution

The fourth proportional to 35,805.96, 49,413.78 and 19,891.92 is: 27,451.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,805.96 : 49,413.78 = 19,891.92 : x
  2. Step 2: Convert to fraction form
    35,805.96/49,413.78 = 19,891.92/x
  3. Step 3: Cross multiply
    35,805.96x = 49,413.78 × 19,891.92
  4. Step 4: Simplify right side
    35,805.96x = 982,934,958.66
  5. Step 5: Solve for x
    x = 982,934,958.66/35,805.96
  6. Step 6: Final answer
    x = 27,451.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.