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Finding the Fourth Proportional to 5,747.56, 8,622.69 and 1,851.82

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Solution

The fourth proportional to 5,747.56, 8,622.69 and 1,851.82 is: 2,778.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,747.56 : 8,622.69 = 1,851.82 : x
  2. Step 2: Convert to fraction form
    5,747.56/8,622.69 = 1,851.82/x
  3. Step 3: Cross multiply
    5,747.56x = 8,622.69 × 1,851.82
  4. Step 4: Simplify right side
    5,747.56x = 15,967,669.80
  5. Step 5: Solve for x
    x = 15,967,669.80/5,747.56
  6. Step 6: Final answer
    x = 2,778.16

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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.