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Finding the Fourth Proportional to 2,495.57, 3,743.17 and 853.27

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Solution

The fourth proportional to 2,495.57, 3,743.17 and 853.27 is: 1,279.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,495.57 : 3,743.17 = 853.27 : x
  2. Step 2: Convert to fraction form
    2,495.57/3,743.17 = 853.27/x
  3. Step 3: Cross multiply
    2,495.57x = 3,743.17 × 853.27
  4. Step 4: Simplify right side
    2,495.57x = 3,193,915.95
  5. Step 5: Solve for x
    x = 3,193,915.95/2,495.57
  6. Step 6: Final answer
    x = 1,279.84

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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.