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Finding the Fourth Proportional to 20,413.56, 30,623.22 and 7,262.04

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Solution

The fourth proportional to 20,413.56, 30,623.22 and 7,262.04 is: 10,894.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,413.56 : 30,623.22 = 7,262.04 : x
  2. Step 2: Convert to fraction form
    20,413.56/30,623.22 = 7,262.04/x
  3. Step 3: Cross multiply
    20,413.56x = 30,623.22 × 7,262.04
  4. Step 4: Simplify right side
    20,413.56x = 222,387,048.57
  5. Step 5: Solve for x
    x = 222,387,048.57/20,413.56
  6. Step 6: Final answer
    x = 10,894.08

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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.