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Finding the Fourth Proportional to 18,503.86, 27,766.73 and 6,825.28

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Solution

The fourth proportional to 18,503.86, 27,766.73 and 6,825.28 is: 10,241.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,503.86 : 27,766.73 = 6,825.28 : x
  2. Step 2: Convert to fraction form
    18,503.86/27,766.73 = 6,825.28/x
  3. Step 3: Cross multiply
    18,503.86x = 27,766.73 × 6,825.28
  4. Step 4: Simplify right side
    18,503.86x = 189,515,706.93
  5. Step 5: Solve for x
    x = 189,515,706.93/18,503.86
  6. Step 6: Final answer
    x = 10,241.96

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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.