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Finding the Fourth Proportional to 28,245.41, 42,367.01 and 8,523.44

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Solution

The fourth proportional to 28,245.41, 42,367.01 and 8,523.44 is: 12,784.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.41 : 42,367.01 = 8,523.44 : x
  2. Step 2: Convert to fraction form
    28,245.41/42,367.01 = 8,523.44/x
  3. Step 3: Cross multiply
    28,245.41x = 42,367.01 × 8,523.44
  4. Step 4: Simplify right side
    28,245.41x = 361,112,413.26
  5. Step 5: Solve for x
    x = 361,112,413.26/28,245.41
  6. Step 6: Final answer
    x = 12,784.82

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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.