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Finding the Fourth Proportional to 3,954.92, 5,455.80 and 3,673.49

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Solution

The fourth proportional to 3,954.92, 5,455.80 and 3,673.49 is: 5,067.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.92 : 5,455.80 = 3,673.49 : x
  2. Step 2: Convert to fraction form
    3,954.92/5,455.80 = 3,673.49/x
  3. Step 3: Cross multiply
    3,954.92x = 5,455.80 × 3,673.49
  4. Step 4: Simplify right side
    3,954.92x = 20,041,799.46
  5. Step 5: Solve for x
    x = 20,041,799.46/3,954.92
  6. Step 6: Final answer
    x = 5,067.57

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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.