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Finding the Fourth Proportional to 3,883.55, 5,827.55 and 1,418.04

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Solution

The fourth proportional to 3,883.55, 5,827.55 and 1,418.04 is: 2,127.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.55 : 5,827.55 = 1,418.04 : x
  2. Step 2: Convert to fraction form
    3,883.55/5,827.55 = 1,418.04/x
  3. Step 3: Cross multiply
    3,883.55x = 5,827.55 × 1,418.04
  4. Step 4: Simplify right side
    3,883.55x = 8,263,691.91
  5. Step 5: Solve for x
    x = 8,263,691.91/3,883.55
  6. Step 6: Final answer
    x = 2,127.87

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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.