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Finding the Fourth Proportional to 5,223.73, 7,208.82 and 2,865.72

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Solution

The fourth proportional to 5,223.73, 7,208.82 and 2,865.72 is: 3,954.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,223.73 : 7,208.82 = 2,865.72 : x
  2. Step 2: Convert to fraction form
    5,223.73/7,208.82 = 2,865.72/x
  3. Step 3: Cross multiply
    5,223.73x = 7,208.82 × 2,865.72
  4. Step 4: Simplify right side
    5,223.73x = 20,658,459.65
  5. Step 5: Solve for x
    x = 20,658,459.65/5,223.73
  6. Step 6: Final answer
    x = 3,954.73

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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.