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Finding the Fourth Proportional to 33,375.75, 46,058.58 and 20,800.50

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Solution

The fourth proportional to 33,375.75, 46,058.58 and 20,800.50 is: 28,704.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,375.75 : 46,058.58 = 20,800.50 : x
  2. Step 2: Convert to fraction form
    33,375.75/46,058.58 = 20,800.50/x
  3. Step 3: Cross multiply
    33,375.75x = 46,058.58 × 20,800.50
  4. Step 4: Simplify right side
    33,375.75x = 958,041,493.29
  5. Step 5: Solve for x
    x = 958,041,493.29/33,375.75
  6. Step 6: Final answer
    x = 28,704.72

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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.