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Finding the Fourth Proportional to 5,880.97, 8,819.49 and 1,721.21

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Solution

The fourth proportional to 5,880.97, 8,819.49 and 1,721.21 is: 2,581.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,880.97 : 8,819.49 = 1,721.21 : x
  2. Step 2: Convert to fraction form
    5,880.97/8,819.49 = 1,721.21/x
  3. Step 3: Cross multiply
    5,880.97x = 8,819.49 × 1,721.21
  4. Step 4: Simplify right side
    5,880.97x = 15,180,194.38
  5. Step 5: Solve for x
    x = 15,180,194.38/5,880.97
  6. Step 6: Final answer
    x = 2,581.24

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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.