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Finding the Fourth Proportional to 3,355.42, 4,630.42 and 1,863.26

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Solution

The fourth proportional to 3,355.42, 4,630.42 and 1,863.26 is: 2,571.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.42 : 4,630.42 = 1,863.26 : x
  2. Step 2: Convert to fraction form
    3,355.42/4,630.42 = 1,863.26/x
  3. Step 3: Cross multiply
    3,355.42x = 4,630.42 × 1,863.26
  4. Step 4: Simplify right side
    3,355.42x = 8,627,676.37
  5. Step 5: Solve for x
    x = 8,627,676.37/3,355.42
  6. Step 6: Final answer
    x = 2,571.27

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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.