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Finding the Fourth Proportional to 1,676.11, 2,512.77 and 702.94

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Solution

The fourth proportional to 1,676.11, 2,512.77 and 702.94 is: 1,053.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.11 : 2,512.77 = 702.94 : x
  2. Step 2: Convert to fraction form
    1,676.11/2,512.77 = 702.94/x
  3. Step 3: Cross multiply
    1,676.11x = 2,512.77 × 702.94
  4. Step 4: Simplify right side
    1,676.11x = 1,766,326.54
  5. Step 5: Solve for x
    x = 1,766,326.54/1,676.11
  6. Step 6: Final answer
    x = 1,053.82

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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.