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Finding the Fourth Proportional to 22,413.70, 33,620.55 and 15,415.30

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Solution

The fourth proportional to 22,413.70, 33,620.55 and 15,415.30 is: 23,122.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,413.70 : 33,620.55 = 15,415.30 : x
  2. Step 2: Convert to fraction form
    22,413.70/33,620.55 = 15,415.30/x
  3. Step 3: Cross multiply
    22,413.70x = 33,620.55 × 15,415.30
  4. Step 4: Simplify right side
    22,413.70x = 518,270,864.42
  5. Step 5: Solve for x
    x = 518,270,864.42/22,413.70
  6. Step 6: Final answer
    x = 23,122.95

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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.