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Finding the Fourth Proportional to 5,561.73, 8,343.75 and 1,863.99

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Solution

The fourth proportional to 5,561.73, 8,343.75 and 1,863.99 is: 2,796.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,561.73 : 8,343.75 = 1,863.99 : x
  2. Step 2: Convert to fraction form
    5,561.73/8,343.75 = 1,863.99/x
  3. Step 3: Cross multiply
    5,561.73x = 8,343.75 × 1,863.99
  4. Step 4: Simplify right side
    5,561.73x = 15,552,666.56
  5. Step 5: Solve for x
    x = 15,552,666.56/5,561.73
  6. Step 6: Final answer
    x = 2,796.37

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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.