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Finding the Fourth Proportional to 15,998.80, 24,010.20 and 8,203.60

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Solution

The fourth proportional to 15,998.80, 24,010.20 and 8,203.60 is: 12,311.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,998.80 : 24,010.20 = 8,203.60 : x
  2. Step 2: Convert to fraction form
    15,998.80/24,010.20 = 8,203.60/x
  3. Step 3: Cross multiply
    15,998.80x = 24,010.20 × 8,203.60
  4. Step 4: Simplify right side
    15,998.80x = 196,970,076.72
  5. Step 5: Solve for x
    x = 196,970,076.72/15,998.80
  6. Step 6: Final answer
    x = 12,311.55

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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.