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Finding the Fourth Proportional to 18,090.64, 27,103.74 and 11,067.22

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Solution

The fourth proportional to 18,090.64, 27,103.74 and 11,067.22 is: 16,581.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.64 : 27,103.74 = 11,067.22 : x
  2. Step 2: Convert to fraction form
    18,090.64/27,103.74 = 11,067.22/x
  3. Step 3: Cross multiply
    18,090.64x = 27,103.74 × 11,067.22
  4. Step 4: Simplify right side
    18,090.64x = 299,963,053.40
  5. Step 5: Solve for x
    x = 299,963,053.40/18,090.64
  6. Step 6: Final answer
    x = 16,581.12

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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.