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Finding the Fourth Proportional to 5,772.52, 8,660.20 and 1,668.52

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Solution

The fourth proportional to 5,772.52, 8,660.20 and 1,668.52 is: 2,503.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,772.52 : 8,660.20 = 1,668.52 : x
  2. Step 2: Convert to fraction form
    5,772.52/8,660.20 = 1,668.52/x
  3. Step 3: Cross multiply
    5,772.52x = 8,660.20 × 1,668.52
  4. Step 4: Simplify right side
    5,772.52x = 14,449,716.90
  5. Step 5: Solve for x
    x = 14,449,716.90/5,772.52
  6. Step 6: Final answer
    x = 2,503.19

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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.