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Finding the Fourth Proportional to 62,785.64, 94,179.21 and 18,413.28

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Solution

The fourth proportional to 62,785.64, 94,179.21 and 18,413.28 is: 27,620.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,785.64 : 94,179.21 = 18,413.28 : x
  2. Step 2: Convert to fraction form
    62,785.64/94,179.21 = 18,413.28/x
  3. Step 3: Cross multiply
    62,785.64x = 94,179.21 × 18,413.28
  4. Step 4: Simplify right side
    62,785.64x = 1,734,148,163.91
  5. Step 5: Solve for x
    x = 1,734,148,163.91/62,785.64
  6. Step 6: Final answer
    x = 27,620.14

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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.