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Finding the Fourth Proportional to 3,968.11, 5,956.03 and 1,889.54

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Solution

The fourth proportional to 3,968.11, 5,956.03 and 1,889.54 is: 2,836.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.11 : 5,956.03 = 1,889.54 : x
  2. Step 2: Convert to fraction form
    3,968.11/5,956.03 = 1,889.54/x
  3. Step 3: Cross multiply
    3,968.11x = 5,956.03 × 1,889.54
  4. Step 4: Simplify right side
    3,968.11x = 11,254,185.35
  5. Step 5: Solve for x
    x = 11,254,185.35/3,968.11
  6. Step 6: Final answer
    x = 2,836.16

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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.