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Finding the Fourth Proportional to 18,797.44, 28,194.72 and 7,853.44

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Solution

The fourth proportional to 18,797.44, 28,194.72 and 7,853.44 is: 11,779.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.44 : 28,194.72 = 7,853.44 : x
  2. Step 2: Convert to fraction form
    18,797.44/28,194.72 = 7,853.44/x
  3. Step 3: Cross multiply
    18,797.44x = 28,194.72 × 7,853.44
  4. Step 4: Simplify right side
    18,797.44x = 221,425,541.84
  5. Step 5: Solve for x
    x = 221,425,541.84/18,797.44
  6. Step 6: Final answer
    x = 11,779.56

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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.