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Finding the Fourth Proportional to 5,819.99, 8,731.16 and 1,661.27

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Solution

The fourth proportional to 5,819.99, 8,731.16 and 1,661.27 is: 2,492.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,819.99 : 8,731.16 = 1,661.27 : x
  2. Step 2: Convert to fraction form
    5,819.99/8,731.16 = 1,661.27/x
  3. Step 3: Cross multiply
    5,819.99x = 8,731.16 × 1,661.27
  4. Step 4: Simplify right side
    5,819.99x = 14,504,805.87
  5. Step 5: Solve for x
    x = 14,504,805.87/5,819.99
  6. Step 6: Final answer
    x = 2,492.24

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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.