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Finding the Fourth Proportional to 4,969.84, 6,858.04 and 2,731.82

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Solution

The fourth proportional to 4,969.84, 6,858.04 and 2,731.82 is: 3,769.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,969.84 : 6,858.04 = 2,731.82 : x
  2. Step 2: Convert to fraction form
    4,969.84/6,858.04 = 2,731.82/x
  3. Step 3: Cross multiply
    4,969.84x = 6,858.04 × 2,731.82
  4. Step 4: Simplify right side
    4,969.84x = 18,734,930.83
  5. Step 5: Solve for x
    x = 18,734,930.83/4,969.84
  6. Step 6: Final answer
    x = 3,769.73

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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.