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Finding the Fourth Proportional to 18,053.82, 27,080.28 and 8,185.92

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Solution

The fourth proportional to 18,053.82, 27,080.28 and 8,185.92 is: 12,278.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,053.82 : 27,080.28 = 8,185.92 : x
  2. Step 2: Convert to fraction form
    18,053.82/27,080.28 = 8,185.92/x
  3. Step 3: Cross multiply
    18,053.82x = 27,080.28 × 8,185.92
  4. Step 4: Simplify right side
    18,053.82x = 221,677,005.66
  5. Step 5: Solve for x
    x = 221,677,005.66/18,053.82
  6. Step 6: Final answer
    x = 12,278.68

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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.