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Finding the Fourth Proportional to 18,310.80, 27,414.24 and 12,051.96

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Solution

The fourth proportional to 18,310.80, 27,414.24 and 12,051.96 is: 18,043.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.80 : 27,414.24 = 12,051.96 : x
  2. Step 2: Convert to fraction form
    18,310.80/27,414.24 = 12,051.96/x
  3. Step 3: Cross multiply
    18,310.80x = 27,414.24 × 12,051.96
  4. Step 4: Simplify right side
    18,310.80x = 330,395,323.91
  5. Step 5: Solve for x
    x = 330,395,323.91/18,310.80
  6. Step 6: Final answer
    x = 18,043.74

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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.