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Finding the Fourth Proportional to 3,494.25, 4,822.11 and 1,922.31

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Solution

The fourth proportional to 3,494.25, 4,822.11 and 1,922.31 is: 2,652.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,494.25 : 4,822.11 = 1,922.31 : x
  2. Step 2: Convert to fraction form
    3,494.25/4,822.11 = 1,922.31/x
  3. Step 3: Cross multiply
    3,494.25x = 4,822.11 × 1,922.31
  4. Step 4: Simplify right side
    3,494.25x = 9,269,590.27
  5. Step 5: Solve for x
    x = 9,269,590.27/3,494.25
  6. Step 6: Final answer
    x = 2,652.81

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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.