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Finding the Fourth Proportional to 5,174.98, 7,766.79 and 2,057.86

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Solution

The fourth proportional to 5,174.98, 7,766.79 and 2,057.86 is: 3,088.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.98 : 7,766.79 = 2,057.86 : x
  2. Step 2: Convert to fraction form
    5,174.98/7,766.79 = 2,057.86/x
  3. Step 3: Cross multiply
    5,174.98x = 7,766.79 × 2,057.86
  4. Step 4: Simplify right side
    5,174.98x = 15,982,966.47
  5. Step 5: Solve for x
    x = 15,982,966.47/5,174.98
  6. Step 6: Final answer
    x = 3,088.51

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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.