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Finding the Fourth Proportional to 22,662.72, 33,991.68 and 13,893.12

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Solution

The fourth proportional to 22,662.72, 33,991.68 and 13,893.12 is: 20,838.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,662.72 : 33,991.68 = 13,893.12 : x
  2. Step 2: Convert to fraction form
    22,662.72/33,991.68 = 13,893.12/x
  3. Step 3: Cross multiply
    22,662.72x = 33,991.68 × 13,893.12
  4. Step 4: Simplify right side
    22,662.72x = 472,250,489.24
  5. Step 5: Solve for x
    x = 472,250,489.24/22,662.72
  6. Step 6: Final answer
    x = 20,838.21

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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.