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Finding the Fourth Proportional to 33,479.80, 46,202.60 and 18,372.20

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Solution

The fourth proportional to 33,479.80, 46,202.60 and 18,372.20 is: 25,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,479.80 : 46,202.60 = 18,372.20 : x
  2. Step 2: Convert to fraction form
    33,479.80/46,202.60 = 18,372.20/x
  3. Step 3: Cross multiply
    33,479.80x = 46,202.60 × 18,372.20
  4. Step 4: Simplify right side
    33,479.80x = 848,843,407.72
  5. Step 5: Solve for x
    x = 848,843,407.72/33,479.80
  6. Step 6: Final answer
    x = 25,353.90

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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.