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Finding the Fourth Proportional to 3,866.75, 5,336.98 and 2,375.95

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Solution

The fourth proportional to 3,866.75, 5,336.98 and 2,375.95 is: 3,279.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.75 : 5,336.98 = 2,375.95 : x
  2. Step 2: Convert to fraction form
    3,866.75/5,336.98 = 2,375.95/x
  3. Step 3: Cross multiply
    3,866.75x = 5,336.98 × 2,375.95
  4. Step 4: Simplify right side
    3,866.75x = 12,680,397.63
  5. Step 5: Solve for x
    x = 12,680,397.63/3,866.75
  6. Step 6: Final answer
    x = 3,279.34

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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.