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Finding the Fourth Proportional to 40,195.80, 60,299.64 and 13,893.48

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Solution

The fourth proportional to 40,195.80, 60,299.64 and 13,893.48 is: 20,842.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,195.80 : 60,299.64 = 13,893.48 : x
  2. Step 2: Convert to fraction form
    40,195.80/60,299.64 = 13,893.48/x
  3. Step 3: Cross multiply
    40,195.80x = 60,299.64 × 13,893.48
  4. Step 4: Simplify right side
    40,195.80x = 837,771,842.35
  5. Step 5: Solve for x
    x = 837,771,842.35/40,195.80
  6. Step 6: Final answer
    x = 20,842.27

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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.