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Finding the Fourth Proportional to 1,883.52, 2,817.72 and 1,335.96

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Solution

The fourth proportional to 1,883.52, 2,817.72 and 1,335.96 is: 1,998.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,883.52 : 2,817.72 = 1,335.96 : x
  2. Step 2: Convert to fraction form
    1,883.52/2,817.72 = 1,335.96/x
  3. Step 3: Cross multiply
    1,883.52x = 2,817.72 × 1,335.96
  4. Step 4: Simplify right side
    1,883.52x = 3,764,361.21
  5. Step 5: Solve for x
    x = 3,764,361.21/1,883.52
  6. Step 6: Final answer
    x = 1,998.58

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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.