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Finding the Fourth Proportional to 29,028.58, 40,067.94 and 18,958.58

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Solution

The fourth proportional to 29,028.58, 40,067.94 and 18,958.58 is: 26,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,028.58 : 40,067.94 = 18,958.58 : x
  2. Step 2: Convert to fraction form
    29,028.58/40,067.94 = 18,958.58/x
  3. Step 3: Cross multiply
    29,028.58x = 40,067.94 × 18,958.58
  4. Step 4: Simplify right side
    29,028.58x = 759,631,326.31
  5. Step 5: Solve for x
    x = 759,631,326.31/29,028.58
  6. Step 6: Final answer
    x = 26,168.40

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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.