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Finding the Fourth Proportional to 6,082.43, 9,120.42 and 1,921.32

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Solution

The fourth proportional to 6,082.43, 9,120.42 and 1,921.32 is: 2,880.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,082.43 : 9,120.42 = 1,921.32 : x
  2. Step 2: Convert to fraction form
    6,082.43/9,120.42 = 1,921.32/x
  3. Step 3: Cross multiply
    6,082.43x = 9,120.42 × 1,921.32
  4. Step 4: Simplify right side
    6,082.43x = 17,523,245.35
  5. Step 5: Solve for x
    x = 17,523,245.35/6,082.43
  6. Step 6: Final answer
    x = 2,880.96

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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.