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Finding the Fourth Proportional to 4,803.78, 6,629.22 and 2,707.91

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Solution

The fourth proportional to 4,803.78, 6,629.22 and 2,707.91 is: 3,736.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,803.78 : 6,629.22 = 2,707.91 : x
  2. Step 2: Convert to fraction form
    4,803.78/6,629.22 = 2,707.91/x
  3. Step 3: Cross multiply
    4,803.78x = 6,629.22 × 2,707.91
  4. Step 4: Simplify right side
    4,803.78x = 17,951,297.98
  5. Step 5: Solve for x
    x = 17,951,297.98/4,803.78
  6. Step 6: Final answer
    x = 3,736.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.