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Finding the Fourth Proportional to 66,559.80, 99,791.10 and 27,096.60

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Solution

The fourth proportional to 66,559.80, 99,791.10 and 27,096.60 is: 40,625.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,559.80 : 99,791.10 = 27,096.60 : x
  2. Step 2: Convert to fraction form
    66,559.80/99,791.10 = 27,096.60/x
  3. Step 3: Cross multiply
    66,559.80x = 99,791.10 × 27,096.60
  4. Step 4: Simplify right side
    66,559.80x = 2,703,999,520.26
  5. Step 5: Solve for x
    x = 2,703,999,520.26/66,559.80
  6. Step 6: Final answer
    x = 40,625.11

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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.