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Finding the Fourth Proportional to 3,968.34, 5,952.81 and 1,335.86

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Solution

The fourth proportional to 3,968.34, 5,952.81 and 1,335.86 is: 2,003.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.34 : 5,952.81 = 1,335.86 : x
  2. Step 2: Convert to fraction form
    3,968.34/5,952.81 = 1,335.86/x
  3. Step 3: Cross multiply
    3,968.34x = 5,952.81 × 1,335.86
  4. Step 4: Simplify right side
    3,968.34x = 7,952,091.00
  5. Step 5: Solve for x
    x = 7,952,091.00/3,968.34
  6. Step 6: Final answer
    x = 2,003.88

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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.