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Finding the Fourth Proportional to 3,442.89, 4,755.09 and 2,321.89

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Solution

The fourth proportional to 3,442.89, 4,755.09 and 2,321.89 is: 3,206.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,442.89 : 4,755.09 = 2,321.89 : x
  2. Step 2: Convert to fraction form
    3,442.89/4,755.09 = 2,321.89/x
  3. Step 3: Cross multiply
    3,442.89x = 4,755.09 × 2,321.89
  4. Step 4: Simplify right side
    3,442.89x = 11,040,784.31
  5. Step 5: Solve for x
    x = 11,040,784.31/3,442.89
  6. Step 6: Final answer
    x = 3,206.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.