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Finding the Fourth Proportional to 12,049.89, 18,102.59 and 8,548.59

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Solution

The fourth proportional to 12,049.89, 18,102.59 and 8,548.59 is: 12,842.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,049.89 : 18,102.59 = 8,548.59 : x
  2. Step 2: Convert to fraction form
    12,049.89/18,102.59 = 8,548.59/x
  3. Step 3: Cross multiply
    12,049.89x = 18,102.59 × 8,548.59
  4. Step 4: Simplify right side
    12,049.89x = 154,751,577.11
  5. Step 5: Solve for x
    x = 154,751,577.11/12,049.89
  6. Step 6: Final answer
    x = 12,842.57

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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.