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Finding the Fourth Proportional to 18,543.78, 27,819.25 and 6,060.44

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Solution

The fourth proportional to 18,543.78, 27,819.25 and 6,060.44 is: 9,091.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.78 : 27,819.25 = 6,060.44 : x
  2. Step 2: Convert to fraction form
    18,543.78/27,819.25 = 6,060.44/x
  3. Step 3: Cross multiply
    18,543.78x = 27,819.25 × 6,060.44
  4. Step 4: Simplify right side
    18,543.78x = 168,596,741.22
  5. Step 5: Solve for x
    x = 168,596,741.22/18,543.78
  6. Step 6: Final answer
    x = 9,091.82

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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.