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Finding the Fourth Proportional to 2,702.22, 4,052.88 and 754.62

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Solution

The fourth proportional to 2,702.22, 4,052.88 and 754.62 is: 1,131.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,702.22 : 4,052.88 = 754.62 : x
  2. Step 2: Convert to fraction form
    2,702.22/4,052.88 = 754.62/x
  3. Step 3: Cross multiply
    2,702.22x = 4,052.88 × 754.62
  4. Step 4: Simplify right side
    2,702.22x = 3,058,384.31
  5. Step 5: Solve for x
    x = 3,058,384.31/2,702.22
  6. Step 6: Final answer
    x = 1,131.80

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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.