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Finding the Fourth Proportional to 22,137.44, 30,549.66 and 12,201.44

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Solution

The fourth proportional to 22,137.44, 30,549.66 and 12,201.44 is: 16,837.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,137.44 : 30,549.66 = 12,201.44 : x
  2. Step 2: Convert to fraction form
    22,137.44/30,549.66 = 12,201.44/x
  3. Step 3: Cross multiply
    22,137.44x = 30,549.66 × 12,201.44
  4. Step 4: Simplify right side
    22,137.44x = 372,749,843.51
  5. Step 5: Solve for x
    x = 372,749,843.51/22,137.44
  6. Step 6: Final answer
    x = 16,837.98

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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.