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Finding the Fourth Proportional to 2,702.56, 4,053.84 and 754.84

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Solution

The fourth proportional to 2,702.56, 4,053.84 and 754.84 is: 1,132.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,702.56 : 4,053.84 = 754.84 : x
  2. Step 2: Convert to fraction form
    2,702.56/4,053.84 = 754.84/x
  3. Step 3: Cross multiply
    2,702.56x = 4,053.84 × 754.84
  4. Step 4: Simplify right side
    2,702.56x = 3,060,000.59
  5. Step 5: Solve for x
    x = 3,060,000.59/2,702.56
  6. Step 6: Final answer
    x = 1,132.26

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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.