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Finding the Fourth Proportional to 13,801.97, 20,699.92 and 3,941.03

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Solution

The fourth proportional to 13,801.97, 20,699.92 and 3,941.03 is: 5,910.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.97 : 20,699.92 = 3,941.03 : x
  2. Step 2: Convert to fraction form
    13,801.97/20,699.92 = 3,941.03/x
  3. Step 3: Cross multiply
    13,801.97x = 20,699.92 × 3,941.03
  4. Step 4: Simplify right side
    13,801.97x = 81,579,005.72
  5. Step 5: Solve for x
    x = 81,579,005.72/13,801.97
  6. Step 6: Final answer
    x = 5,910.68

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1.5x scale

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.