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Finding the Fourth Proportional to 16,422.05, 22,662.99 and 9,713.43

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Solution

The fourth proportional to 16,422.05, 22,662.99 and 9,713.43 is: 13,404.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,422.05 : 22,662.99 = 9,713.43 : x
  2. Step 2: Convert to fraction form
    16,422.05/22,662.99 = 9,713.43/x
  3. Step 3: Cross multiply
    16,422.05x = 22,662.99 × 9,713.43
  4. Step 4: Simplify right side
    16,422.05x = 220,135,366.96
  5. Step 5: Solve for x
    x = 220,135,366.96/16,422.05
  6. Step 6: Final answer
    x = 13,404.87

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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.