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Finding the Fourth Proportional to 27,755.66, 41,647.15 and 12,962.43

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Solution

The fourth proportional to 27,755.66, 41,647.15 and 12,962.43 is: 19,450.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,755.66 : 41,647.15 = 12,962.43 : x
  2. Step 2: Convert to fraction form
    27,755.66/41,647.15 = 12,962.43/x
  3. Step 3: Cross multiply
    27,755.66x = 41,647.15 × 12,962.43
  4. Step 4: Simplify right side
    27,755.66x = 539,848,266.57
  5. Step 5: Solve for x
    x = 539,848,266.57/27,755.66
  6. Step 6: Final answer
    x = 19,450.02

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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.