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Finding the Fourth Proportional to 2,134.88, 3,201.48 and 835.92

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Solution

The fourth proportional to 2,134.88, 3,201.48 and 835.92 is: 1,253.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.88 : 3,201.48 = 835.92 : x
  2. Step 2: Convert to fraction form
    2,134.88/3,201.48 = 835.92/x
  3. Step 3: Cross multiply
    2,134.88x = 3,201.48 × 835.92
  4. Step 4: Simplify right side
    2,134.88x = 2,676,181.16
  5. Step 5: Solve for x
    x = 2,676,181.16/2,134.88
  6. Step 6: Final answer
    x = 1,253.55

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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.