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Finding the Fourth Proportional to 22,140.44, 30,553.80 and 12,204.44

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Solution

The fourth proportional to 22,140.44, 30,553.80 and 12,204.44 is: 16,842.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,140.44 : 30,553.80 = 12,204.44 : x
  2. Step 2: Convert to fraction form
    22,140.44/30,553.80 = 12,204.44/x
  3. Step 3: Cross multiply
    22,140.44x = 30,553.80 × 12,204.44
  4. Step 4: Simplify right side
    22,140.44x = 372,892,018.87
  5. Step 5: Solve for x
    x = 372,892,018.87/22,140.44
  6. Step 6: Final answer
    x = 16,842.12

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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.