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Finding the Fourth Proportional to 13,801.56, 20,602.23 and 12,773.64

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Solution

The fourth proportional to 13,801.56, 20,602.23 and 12,773.64 is: 19,067.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.56 : 20,602.23 = 12,773.64 : x
  2. Step 2: Convert to fraction form
    13,801.56/20,602.23 = 12,773.64/x
  3. Step 3: Cross multiply
    13,801.56x = 20,602.23 × 12,773.64
  4. Step 4: Simplify right side
    13,801.56x = 263,165,469.22
  5. Step 5: Solve for x
    x = 263,165,469.22/13,801.56
  6. Step 6: Final answer
    x = 19,067.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.