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Finding the Fourth Proportional to 22,272.40, 30,736.20 and 12,201.04

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Solution

The fourth proportional to 22,272.40, 30,736.20 and 12,201.04 is: 16,837.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,272.40 : 30,736.20 = 12,201.04 : x
  2. Step 2: Convert to fraction form
    22,272.40/30,736.20 = 12,201.04/x
  3. Step 3: Cross multiply
    22,272.40x = 30,736.20 × 12,201.04
  4. Step 4: Simplify right side
    22,272.40x = 375,013,605.65
  5. Step 5: Solve for x
    x = 375,013,605.65/22,272.40
  6. Step 6: Final answer
    x = 16,837.59

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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.