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Finding the Fourth Proportional to 33,190.40, 49,843.20 and 17,638.40

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Solution

The fourth proportional to 33,190.40, 49,843.20 and 17,638.40 is: 26,488.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,190.40 : 49,843.20 = 17,638.40 : x
  2. Step 2: Convert to fraction form
    33,190.40/49,843.20 = 17,638.40/x
  3. Step 3: Cross multiply
    33,190.40x = 49,843.20 × 17,638.40
  4. Step 4: Simplify right side
    33,190.40x = 879,154,298.88
  5. Step 5: Solve for x
    x = 879,154,298.88/33,190.40
  6. Step 6: Final answer
    x = 26,488.21

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1.5x scale

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.