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Finding the Fourth Proportional to 2,755.52, 4,133.30 and 675.54

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Solution

The fourth proportional to 2,755.52, 4,133.30 and 675.54 is: 1,013.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.52 : 4,133.30 = 675.54 : x
  2. Step 2: Convert to fraction form
    2,755.52/4,133.30 = 675.54/x
  3. Step 3: Cross multiply
    2,755.52x = 4,133.30 × 675.54
  4. Step 4: Simplify right side
    2,755.52x = 2,792,206.10
  5. Step 5: Solve for x
    x = 2,792,206.10/2,755.52
  6. Step 6: Final answer
    x = 1,013.31

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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.