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Finding the Fourth Proportional to 5,405.52, 8,111.52 and 1,943.04

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Solution

The fourth proportional to 5,405.52, 8,111.52 and 1,943.04 is: 2,915.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.52 : 8,111.52 = 1,943.04 : x
  2. Step 2: Convert to fraction form
    5,405.52/8,111.52 = 1,943.04/x
  3. Step 3: Cross multiply
    5,405.52x = 8,111.52 × 1,943.04
  4. Step 4: Simplify right side
    5,405.52x = 15,761,007.82
  5. Step 5: Solve for x
    x = 15,761,007.82/5,405.52
  6. Step 6: Final answer
    x = 2,915.72

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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.