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Finding the Fourth Proportional to 18,559.44, 27,845.72 and 8,172.08

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Solution

The fourth proportional to 18,559.44, 27,845.72 and 8,172.08 is: 12,261.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,559.44 : 27,845.72 = 8,172.08 : x
  2. Step 2: Convert to fraction form
    18,559.44/27,845.72 = 8,172.08/x
  3. Step 3: Cross multiply
    18,559.44x = 27,845.72 × 8,172.08
  4. Step 4: Simplify right side
    18,559.44x = 227,557,451.50
  5. Step 5: Solve for x
    x = 227,557,451.50/18,559.44
  6. Step 6: Final answer
    x = 12,261.01

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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.