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Finding the Fourth Proportional to 22,192.64, 33,285.12 and 8,339.20

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Solution

The fourth proportional to 22,192.64, 33,285.12 and 8,339.20 is: 12,507.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,192.64 : 33,285.12 = 8,339.20 : x
  2. Step 2: Convert to fraction form
    22,192.64/33,285.12 = 8,339.20/x
  3. Step 3: Cross multiply
    22,192.64x = 33,285.12 × 8,339.20
  4. Step 4: Simplify right side
    22,192.64x = 277,571,272.70
  5. Step 5: Solve for x
    x = 277,571,272.70/22,192.64
  6. Step 6: Final answer
    x = 12,507.36

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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.