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Finding the Fourth Proportional to 14,770.52, 20,382.81 and 8,799.09

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Solution

The fourth proportional to 14,770.52, 20,382.81 and 8,799.09 is: 12,142.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,770.52 : 20,382.81 = 8,799.09 : x
  2. Step 2: Convert to fraction form
    14,770.52/20,382.81 = 8,799.09/x
  3. Step 3: Cross multiply
    14,770.52x = 20,382.81 × 8,799.09
  4. Step 4: Simplify right side
    14,770.52x = 179,350,179.64
  5. Step 5: Solve for x
    x = 179,350,179.64/14,770.52
  6. Step 6: Final answer
    x = 12,142.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.