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Finding the Fourth Proportional to 16,229.38, 22,396.56 and 8,777.38

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Solution

The fourth proportional to 16,229.38, 22,396.56 and 8,777.38 is: 12,112.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,229.38 : 22,396.56 = 8,777.38 : x
  2. Step 2: Convert to fraction form
    16,229.38/22,396.56 = 8,777.38/x
  3. Step 3: Cross multiply
    16,229.38x = 22,396.56 × 8,777.38
  4. Step 4: Simplify right side
    16,229.38x = 196,583,117.81
  5. Step 5: Solve for x
    x = 196,583,117.81/16,229.38
  6. Step 6: Final answer
    x = 12,112.79

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Half scale
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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.