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Finding the Fourth Proportional to 3,855.36, 5,779.20 and 1,548.48

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Solution

The fourth proportional to 3,855.36, 5,779.20 and 1,548.48 is: 2,321.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.36 : 5,779.20 = 1,548.48 : x
  2. Step 2: Convert to fraction form
    3,855.36/5,779.20 = 1,548.48/x
  3. Step 3: Cross multiply
    3,855.36x = 5,779.20 × 1,548.48
  4. Step 4: Simplify right side
    3,855.36x = 8,948,975.62
  5. Step 5: Solve for x
    x = 8,948,975.62/3,855.36
  6. Step 6: Final answer
    x = 2,321.18

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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.