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Finding the Fourth Proportional to 2,543.00, 3,813.28 and 1,556.42

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Solution

The fourth proportional to 2,543.00, 3,813.28 and 1,556.42 is: 2,333.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.00 : 3,813.28 = 1,556.42 : x
  2. Step 2: Convert to fraction form
    2,543.00/3,813.28 = 1,556.42/x
  3. Step 3: Cross multiply
    2,543.00x = 3,813.28 × 1,556.42
  4. Step 4: Simplify right side
    2,543.00x = 5,935,042.30
  5. Step 5: Solve for x
    x = 5,935,042.30/2,543.00
  6. Step 6: Final answer
    x = 2,333.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.