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Finding the Fourth Proportional to 69,236.79, 103,813.60 and 27,066.65

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Solution

The fourth proportional to 69,236.79, 103,813.60 and 27,066.65 is: 40,583.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,236.79 : 103,813.60 = 27,066.65 : x
  2. Step 2: Convert to fraction form
    69,236.79/103,813.60 = 27,066.65/x
  3. Step 3: Cross multiply
    69,236.79x = 103,813.60 × 27,066.65
  4. Step 4: Simplify right side
    69,236.79x = 2,809,885,722.04
  5. Step 5: Solve for x
    x = 2,809,885,722.04/69,236.79
  6. Step 6: Final answer
    x = 40,583.71

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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.