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Finding the Fourth Proportional to 2,702.96, 4,054.44 and 755.18

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Solution

The fourth proportional to 2,702.96, 4,054.44 and 755.18 is: 1,132.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,702.96 : 4,054.44 = 755.18 : x
  2. Step 2: Convert to fraction form
    2,702.96/4,054.44 = 755.18/x
  3. Step 3: Cross multiply
    2,702.96x = 4,054.44 × 755.18
  4. Step 4: Simplify right side
    2,702.96x = 3,061,811.73
  5. Step 5: Solve for x
    x = 3,061,811.73/2,702.96
  6. Step 6: Final answer
    x = 1,132.76

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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.