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Finding the Fourth Proportional to 15,611.12, 23,413.44 and 5,747.84

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Solution

The fourth proportional to 15,611.12, 23,413.44 and 5,747.84 is: 8,620.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,611.12 : 23,413.44 = 5,747.84 : x
  2. Step 2: Convert to fraction form
    15,611.12/23,413.44 = 5,747.84/x
  3. Step 3: Cross multiply
    15,611.12x = 23,413.44 × 5,747.84
  4. Step 4: Simplify right side
    15,611.12x = 134,576,706.97
  5. Step 5: Solve for x
    x = 134,576,706.97/15,611.12
  6. Step 6: Final answer
    x = 8,620.57

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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.