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Finding the Fourth Proportional to 3,950.56, 5,451.54 and 2,458.42

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Solution

The fourth proportional to 3,950.56, 5,451.54 and 2,458.42 is: 3,392.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.56 : 5,451.54 = 2,458.42 : x
  2. Step 2: Convert to fraction form
    3,950.56/5,451.54 = 2,458.42/x
  3. Step 3: Cross multiply
    3,950.56x = 5,451.54 × 2,458.42
  4. Step 4: Simplify right side
    3,950.56x = 13,402,174.97
  5. Step 5: Solve for x
    x = 13,402,174.97/3,950.56
  6. Step 6: Final answer
    x = 3,392.47

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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.