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Finding the Fourth Proportional to 5,658.57, 8,489.48 and 1,763.28

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Solution

The fourth proportional to 5,658.57, 8,489.48 and 1,763.28 is: 2,645.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,658.57 : 8,489.48 = 1,763.28 : x
  2. Step 2: Convert to fraction form
    5,658.57/8,489.48 = 1,763.28/x
  3. Step 3: Cross multiply
    5,658.57x = 8,489.48 × 1,763.28
  4. Step 4: Simplify right side
    5,658.57x = 14,969,321.48
  5. Step 5: Solve for x
    x = 14,969,321.48/5,658.57
  6. Step 6: Final answer
    x = 2,645.42

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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.