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Finding the Fourth Proportional to 22,413.63, 33,620.52 and 9,930.30

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Solution

The fourth proportional to 22,413.63, 33,620.52 and 9,930.30 is: 14,895.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,413.63 : 33,620.52 = 9,930.30 : x
  2. Step 2: Convert to fraction form
    22,413.63/33,620.52 = 9,930.30/x
  3. Step 3: Cross multiply
    22,413.63x = 33,620.52 × 9,930.30
  4. Step 4: Simplify right side
    22,413.63x = 333,861,849.76
  5. Step 5: Solve for x
    x = 333,861,849.76/22,413.63
  6. Step 6: Final answer
    x = 14,895.48

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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.