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Finding the Fourth Proportional to 18,067.78, 24,919.48 and 13,808.26

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Solution

The fourth proportional to 18,067.78, 24,919.48 and 13,808.26 is: 19,044.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,067.78 : 24,919.48 = 13,808.26 : x
  2. Step 2: Convert to fraction form
    18,067.78/24,919.48 = 13,808.26/x
  3. Step 3: Cross multiply
    18,067.78x = 24,919.48 × 13,808.26
  4. Step 4: Simplify right side
    18,067.78x = 344,094,658.90
  5. Step 5: Solve for x
    x = 344,094,658.90/18,067.78
  6. Step 6: Final answer
    x = 19,044.66

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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.