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Finding the Fourth Proportional to 7,168.44, 10,754.49 and 2,787.18

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Solution

The fourth proportional to 7,168.44, 10,754.49 and 2,787.18 is: 4,181.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.44 : 10,754.49 = 2,787.18 : x
  2. Step 2: Convert to fraction form
    7,168.44/10,754.49 = 2,787.18/x
  3. Step 3: Cross multiply
    7,168.44x = 10,754.49 × 2,787.18
  4. Step 4: Simplify right side
    7,168.44x = 29,974,699.44
  5. Step 5: Solve for x
    x = 29,974,699.44/7,168.44
  6. Step 6: Final answer
    x = 4,181.48

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1.5x scale

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.