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Finding the Fourth Proportional to 18,369.51, 27,562.07 and 10,039.79

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Solution

The fourth proportional to 18,369.51, 27,562.07 and 10,039.79 is: 15,063.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,369.51 : 27,562.07 = 10,039.79 : x
  2. Step 2: Convert to fraction form
    18,369.51/27,562.07 = 10,039.79/x
  3. Step 3: Cross multiply
    18,369.51x = 27,562.07 × 10,039.79
  4. Step 4: Simplify right side
    18,369.51x = 276,717,413.47
  5. Step 5: Solve for x
    x = 276,717,413.47/18,369.51
  6. Step 6: Final answer
    x = 15,063.95

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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.