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Finding the Fourth Proportional to 19,994.39, 27,590.87 and 11,041.82

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Solution

The fourth proportional to 19,994.39, 27,590.87 and 11,041.82 is: 15,236.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.39 : 27,590.87 = 11,041.82 : x
  2. Step 2: Convert to fraction form
    19,994.39/27,590.87 = 11,041.82/x
  3. Step 3: Cross multiply
    19,994.39x = 27,590.87 × 11,041.82
  4. Step 4: Simplify right side
    19,994.39x = 304,653,413.30
  5. Step 5: Solve for x
    x = 304,653,413.30/19,994.39
  6. Step 6: Final answer
    x = 15,236.94

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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.