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Finding the Fourth Proportional to 16,830.10, 25,245.15 and 8,082.10

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Solution

The fourth proportional to 16,830.10, 25,245.15 and 8,082.10 is: 12,123.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,830.10 : 25,245.15 = 8,082.10 : x
  2. Step 2: Convert to fraction form
    16,830.10/25,245.15 = 8,082.10/x
  3. Step 3: Cross multiply
    16,830.10x = 25,245.15 × 8,082.10
  4. Step 4: Simplify right side
    16,830.10x = 204,033,826.82
  5. Step 5: Solve for x
    x = 204,033,826.82/16,830.10
  6. Step 6: Final answer
    x = 12,123.15

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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.