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Finding the Fourth Proportional to 5,252.79, 7,879.20 and 4,932.03

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Solution

The fourth proportional to 5,252.79, 7,879.20 and 4,932.03 is: 7,398.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,252.79 : 7,879.20 = 4,932.03 : x
  2. Step 2: Convert to fraction form
    5,252.79/7,879.20 = 4,932.03/x
  3. Step 3: Cross multiply
    5,252.79x = 7,879.20 × 4,932.03
  4. Step 4: Simplify right side
    5,252.79x = 38,860,450.78
  5. Step 5: Solve for x
    x = 38,860,450.78/5,252.79
  6. Step 6: Final answer
    x = 7,398.06

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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.