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Finding the Fourth Proportional to 8,054.64, 12,082.10 and 2,211.21

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Solution

The fourth proportional to 8,054.64, 12,082.10 and 2,211.21 is: 3,316.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,054.64 : 12,082.10 = 2,211.21 : x
  2. Step 2: Convert to fraction form
    8,054.64/12,082.10 = 2,211.21/x
  3. Step 3: Cross multiply
    8,054.64x = 12,082.10 × 2,211.21
  4. Step 4: Simplify right side
    8,054.64x = 26,716,049.28
  5. Step 5: Solve for x
    x = 26,716,049.28/8,054.64
  6. Step 6: Final answer
    x = 3,316.85

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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.