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Finding the Fourth Proportional to 4,869.03, 7,304.81 and 2,791.38

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Solution

The fourth proportional to 4,869.03, 7,304.81 and 2,791.38 is: 4,187.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.03 : 7,304.81 = 2,791.38 : x
  2. Step 2: Convert to fraction form
    4,869.03/7,304.81 = 2,791.38/x
  3. Step 3: Cross multiply
    4,869.03x = 7,304.81 × 2,791.38
  4. Step 4: Simplify right side
    4,869.03x = 20,390,486.58
  5. Step 5: Solve for x
    x = 20,390,486.58/4,869.03
  6. Step 6: Final answer
    x = 4,187.79

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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.