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Finding the Fourth Proportional to 5,628.16, 7,764.96 and 3,268.36

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Solution

The fourth proportional to 5,628.16, 7,764.96 and 3,268.36 is: 4,509.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.16 : 7,764.96 = 3,268.36 : x
  2. Step 2: Convert to fraction form
    5,628.16/7,764.96 = 3,268.36/x
  3. Step 3: Cross multiply
    5,628.16x = 7,764.96 × 3,268.36
  4. Step 4: Simplify right side
    5,628.16x = 25,378,684.67
  5. Step 5: Solve for x
    x = 25,378,684.67/5,628.16
  6. Step 6: Final answer
    x = 4,509.23

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.