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Finding the Fourth Proportional to 3,968.84, 5,962.38 and 2,801.54

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Solution

The fourth proportional to 3,968.84, 5,962.38 and 2,801.54 is: 4,208.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.84 : 5,962.38 = 2,801.54 : x
  2. Step 2: Convert to fraction form
    3,968.84/5,962.38 = 2,801.54/x
  3. Step 3: Cross multiply
    3,968.84x = 5,962.38 × 2,801.54
  4. Step 4: Simplify right side
    3,968.84x = 16,703,846.07
  5. Step 5: Solve for x
    x = 16,703,846.07/3,968.84
  6. Step 6: Final answer
    x = 4,208.75

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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.