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Finding the Fourth Proportional to 2,674.60, 4,010.68 and 825.37

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Solution

The fourth proportional to 2,674.60, 4,010.68 and 825.37 is: 1,237.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.60 : 4,010.68 = 825.37 : x
  2. Step 2: Convert to fraction form
    2,674.60/4,010.68 = 825.37/x
  3. Step 3: Cross multiply
    2,674.60x = 4,010.68 × 825.37
  4. Step 4: Simplify right side
    2,674.60x = 3,310,294.95
  5. Step 5: Solve for x
    x = 3,310,294.95/2,674.60
  6. Step 6: Final answer
    x = 1,237.68

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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.