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Finding the Fourth Proportional to 69,242.96, 103,874.44 and 21,841.94

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Solution

The fourth proportional to 69,242.96, 103,874.44 and 21,841.94 is: 32,766.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,242.96 : 103,874.44 = 21,841.94 : x
  2. Step 2: Convert to fraction form
    69,242.96/103,874.44 = 21,841.94/x
  3. Step 3: Cross multiply
    69,242.96x = 103,874.44 × 21,841.94
  4. Step 4: Simplify right side
    69,242.96x = 2,268,819,286.01
  5. Step 5: Solve for x
    x = 2,268,819,286.01/69,242.96
  6. Step 6: Final answer
    x = 32,766.06

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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.