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Finding the Fourth Proportional to 18,067.64, 27,081.69 and 9,303.08

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Solution

The fourth proportional to 18,067.64, 27,081.69 and 9,303.08 is: 13,944.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,067.64 : 27,081.69 = 9,303.08 : x
  2. Step 2: Convert to fraction form
    18,067.64/27,081.69 = 9,303.08/x
  3. Step 3: Cross multiply
    18,067.64x = 27,081.69 × 9,303.08
  4. Step 4: Simplify right side
    18,067.64x = 251,943,128.61
  5. Step 5: Solve for x
    x = 251,943,128.61/18,067.64
  6. Step 6: Final answer
    x = 13,944.44

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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.