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Finding the Fourth Proportional to 3,895.14, 5,375.36 and 2,216.37

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Solution

The fourth proportional to 3,895.14, 5,375.36 and 2,216.37 is: 3,058.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.14 : 5,375.36 = 2,216.37 : x
  2. Step 2: Convert to fraction form
    3,895.14/5,375.36 = 2,216.37/x
  3. Step 3: Cross multiply
    3,895.14x = 5,375.36 × 2,216.37
  4. Step 4: Simplify right side
    3,895.14x = 11,913,792.18
  5. Step 5: Solve for x
    x = 11,913,792.18/3,895.14
  6. Step 6: Final answer
    x = 3,058.63

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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.