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Finding the Fourth Proportional to 3,492.68, 4,819.92 and 2,000.56

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Solution

The fourth proportional to 3,492.68, 4,819.92 and 2,000.56 is: 2,760.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.68 : 4,819.92 = 2,000.56 : x
  2. Step 2: Convert to fraction form
    3,492.68/4,819.92 = 2,000.56/x
  3. Step 3: Cross multiply
    3,492.68x = 4,819.92 × 2,000.56
  4. Step 4: Simplify right side
    3,492.68x = 9,642,539.16
  5. Step 5: Solve for x
    x = 9,642,539.16/3,492.68
  6. Step 6: Final answer
    x = 2,760.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.