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Finding the Fourth Proportional to 22,168.80, 33,272.64 and 9,021.12

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Solution

The fourth proportional to 22,168.80, 33,272.64 and 9,021.12 is: 13,539.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,168.80 : 33,272.64 = 9,021.12 : x
  2. Step 2: Convert to fraction form
    22,168.80/33,272.64 = 9,021.12/x
  3. Step 3: Cross multiply
    22,168.80x = 33,272.64 × 9,021.12
  4. Step 4: Simplify right side
    22,168.80x = 300,156,478.16
  5. Step 5: Solve for x
    x = 300,156,478.16/22,168.80
  6. Step 6: Final answer
    x = 13,539.59

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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.