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Finding the Fourth Proportional to 5,269.64, 7,272.50 and 2,912.19

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Solution

The fourth proportional to 5,269.64, 7,272.50 and 2,912.19 is: 4,019.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,269.64 : 7,272.50 = 2,912.19 : x
  2. Step 2: Convert to fraction form
    5,269.64/7,272.50 = 2,912.19/x
  3. Step 3: Cross multiply
    5,269.64x = 7,272.50 × 2,912.19
  4. Step 4: Simplify right side
    5,269.64x = 21,178,887.21
  5. Step 5: Solve for x
    x = 21,178,887.21/5,269.64
  6. Step 6: Final answer
    x = 4,019.04

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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.