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Finding the Fourth Proportional to 18,793.06, 28,191.26 and 4,942.06

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Solution

The fourth proportional to 18,793.06, 28,191.26 and 4,942.06 is: 7,413.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.06 : 28,191.26 = 4,942.06 : x
  2. Step 2: Convert to fraction form
    18,793.06/28,191.26 = 4,942.06/x
  3. Step 3: Cross multiply
    18,793.06x = 28,191.26 × 4,942.06
  4. Step 4: Simplify right side
    18,793.06x = 139,322,898.40
  5. Step 5: Solve for x
    x = 139,322,898.40/18,793.06
  6. Step 6: Final answer
    x = 7,413.53

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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.