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Finding the Fourth Proportional to 5,294.79, 7,942.46 and 2,008.15

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Solution

The fourth proportional to 5,294.79, 7,942.46 and 2,008.15 is: 3,012.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,294.79 : 7,942.46 = 2,008.15 : x
  2. Step 2: Convert to fraction form
    5,294.79/7,942.46 = 2,008.15/x
  3. Step 3: Cross multiply
    5,294.79x = 7,942.46 × 2,008.15
  4. Step 4: Simplify right side
    5,294.79x = 15,949,621.15
  5. Step 5: Solve for x
    x = 15,949,621.15/5,294.79
  6. Step 6: Final answer
    x = 3,012.32

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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.