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Finding the Fourth Proportional to 2,635.27, 3,957 and 2,518.41

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Solution

The fourth proportional to 2,635.27, 3,957 and 2,518.41 is: 3,781.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.27 : 3,957 = 2,518.41 : x
  2. Step 2: Convert to fraction form
    2,635.27/3,957 = 2,518.41/x
  3. Step 3: Cross multiply
    2,635.27x = 3,957 × 2,518.41
  4. Step 4: Simplify right side
    2,635.27x = 9,965,348.37
  5. Step 5: Solve for x
    x = 9,965,348.37/2,635.27
  6. Step 6: Final answer
    x = 3,781.53

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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.