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Finding the Fourth Proportional to 27,107.80, 40,656.30 and 13,067.80

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Solution

The fourth proportional to 27,107.80, 40,656.30 and 13,067.80 is: 19,599.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,107.80 : 40,656.30 = 13,067.80 : x
  2. Step 2: Convert to fraction form
    27,107.80/40,656.30 = 13,067.80/x
  3. Step 3: Cross multiply
    27,107.80x = 40,656.30 × 13,067.80
  4. Step 4: Simplify right side
    27,107.80x = 531,288,397.14
  5. Step 5: Solve for x
    x = 531,288,397.14/27,107.80
  6. Step 6: Final answer
    x = 19,599.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.