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Finding the Fourth Proportional to 41,890.08, 62,844.32 and 13,809

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Solution

The fourth proportional to 41,890.08, 62,844.32 and 13,809 is: 20,716.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,890.08 : 62,844.32 = 13,809 : x
  2. Step 2: Convert to fraction form
    41,890.08/62,844.32 = 13,809/x
  3. Step 3: Cross multiply
    41,890.08x = 62,844.32 × 13,809
  4. Step 4: Simplify right side
    41,890.08x = 867,817,214.88
  5. Step 5: Solve for x
    x = 867,817,214.88/41,890.08
  6. Step 6: Final answer
    x = 20,716.53

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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.