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Finding the Fourth Proportional to 69,617.57, 104,413.11 and 19,685.63

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Solution

The fourth proportional to 69,617.57, 104,413.11 and 19,685.63 is: 29,524.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,617.57 : 104,413.11 = 19,685.63 : x
  2. Step 2: Convert to fraction form
    69,617.57/104,413.11 = 19,685.63/x
  3. Step 3: Cross multiply
    69,617.57x = 104,413.11 × 19,685.63
  4. Step 4: Simplify right side
    69,617.57x = 2,055,437,328.54
  5. Step 5: Solve for x
    x = 2,055,437,328.54/69,617.57
  6. Step 6: Final answer
    x = 29,524.69

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1.5x scale

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.