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Finding the Fourth Proportional to 16,489.22, 22,754.95 and 8,935.56

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Solution

The fourth proportional to 16,489.22, 22,754.95 and 8,935.56 is: 12,330.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,489.22 : 22,754.95 = 8,935.56 : x
  2. Step 2: Convert to fraction form
    16,489.22/22,754.95 = 8,935.56/x
  3. Step 3: Cross multiply
    16,489.22x = 22,754.95 × 8,935.56
  4. Step 4: Simplify right side
    16,489.22x = 203,328,198.68
  5. Step 5: Solve for x
    x = 203,328,198.68/16,489.22
  6. Step 6: Final answer
    x = 12,330.98

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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.