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Finding the Fourth Proportional to 27,874.96, 41,811.60 and 7,098.40

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Solution

The fourth proportional to 27,874.96, 41,811.60 and 7,098.40 is: 10,647.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,874.96 : 41,811.60 = 7,098.40 : x
  2. Step 2: Convert to fraction form
    27,874.96/41,811.60 = 7,098.40/x
  3. Step 3: Cross multiply
    27,874.96x = 41,811.60 × 7,098.40
  4. Step 4: Simplify right side
    27,874.96x = 296,795,461.44
  5. Step 5: Solve for x
    x = 296,795,461.44/27,874.96
  6. Step 6: Final answer
    x = 10,647.39

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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.