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Finding the Fourth Proportional to 60,786.69, 91,179.90 and 16,413.45

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Solution

The fourth proportional to 60,786.69, 91,179.90 and 16,413.45 is: 24,620.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,786.69 : 91,179.90 = 16,413.45 : x
  2. Step 2: Convert to fraction form
    60,786.69/91,179.90 = 16,413.45/x
  3. Step 3: Cross multiply
    60,786.69x = 91,179.90 × 16,413.45
  4. Step 4: Simplify right side
    60,786.69x = 1,496,576,729.66
  5. Step 5: Solve for x
    x = 1,496,576,729.66/60,786.69
  6. Step 6: Final answer
    x = 24,620.14

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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.