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Finding the Fourth Proportional to 5,388.44, 8,082.65 and 1,492.85

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Solution

The fourth proportional to 5,388.44, 8,082.65 and 1,492.85 is: 2,239.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.44 : 8,082.65 = 1,492.85 : x
  2. Step 2: Convert to fraction form
    5,388.44/8,082.65 = 1,492.85/x
  3. Step 3: Cross multiply
    5,388.44x = 8,082.65 × 1,492.85
  4. Step 4: Simplify right side
    5,388.44x = 12,066,184.05
  5. Step 5: Solve for x
    x = 12,066,184.05/5,388.44
  6. Step 6: Final answer
    x = 2,239.27

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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.