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Finding the Fourth Proportional to 16,916.88, 25,375.32 and 5,229.84

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Solution

The fourth proportional to 16,916.88, 25,375.32 and 5,229.84 is: 7,844.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,916.88 : 25,375.32 = 5,229.84 : x
  2. Step 2: Convert to fraction form
    16,916.88/25,375.32 = 5,229.84/x
  3. Step 3: Cross multiply
    16,916.88x = 25,375.32 × 5,229.84
  4. Step 4: Simplify right side
    16,916.88x = 132,708,863.55
  5. Step 5: Solve for x
    x = 132,708,863.55/16,916.88
  6. Step 6: Final answer
    x = 7,844.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.