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Finding the Fourth Proportional to 13,673.22, 20,495.43 and 7,092.42

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Solution

The fourth proportional to 13,673.22, 20,495.43 and 7,092.42 is: 10,631.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.22 : 20,495.43 = 7,092.42 : x
  2. Step 2: Convert to fraction form
    13,673.22/20,495.43 = 7,092.42/x
  3. Step 3: Cross multiply
    13,673.22x = 20,495.43 × 7,092.42
  4. Step 4: Simplify right side
    13,673.22x = 145,362,197.64
  5. Step 5: Solve for x
    x = 145,362,197.64/13,673.22
  6. Step 6: Final answer
    x = 10,631.16

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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.