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Finding the Fourth Proportional to 33,175.80, 49,763.70 and 20,734.20

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Solution

The fourth proportional to 33,175.80, 49,763.70 and 20,734.20 is: 31,101.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,175.80 : 49,763.70 = 20,734.20 : x
  2. Step 2: Convert to fraction form
    33,175.80/49,763.70 = 20,734.20/x
  3. Step 3: Cross multiply
    33,175.80x = 49,763.70 × 20,734.20
  4. Step 4: Simplify right side
    33,175.80x = 1,031,810,508.54
  5. Step 5: Solve for x
    x = 1,031,810,508.54/33,175.80
  6. Step 6: Final answer
    x = 31,101.30

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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.