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Finding the Fourth Proportional to 11,231.80, 16,847.70 and 4,662.70

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Solution

The fourth proportional to 11,231.80, 16,847.70 and 4,662.70 is: 6,994.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,231.80 : 16,847.70 = 4,662.70 : x
  2. Step 2: Convert to fraction form
    11,231.80/16,847.70 = 4,662.70/x
  3. Step 3: Cross multiply
    11,231.80x = 16,847.70 × 4,662.70
  4. Step 4: Simplify right side
    11,231.80x = 78,555,770.79
  5. Step 5: Solve for x
    x = 78,555,770.79/11,231.80
  6. Step 6: Final answer
    x = 6,994.05

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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.