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Finding the Fourth Proportional to 43,687.80, 65,580.30 and 27,066.60

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Solution

The fourth proportional to 43,687.80, 65,580.30 and 27,066.60 is: 40,630.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,687.80 : 65,580.30 = 27,066.60 : x
  2. Step 2: Convert to fraction form
    43,687.80/65,580.30 = 27,066.60/x
  3. Step 3: Cross multiply
    43,687.80x = 65,580.30 × 27,066.60
  4. Step 4: Simplify right side
    43,687.80x = 1,775,035,747.98
  5. Step 5: Solve for x
    x = 1,775,035,747.98/43,687.80
  6. Step 6: Final answer
    x = 40,630.01

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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.