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Finding the Fourth Proportional to 13,591.73, 20,363.98 and 7,356.03

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Solution

The fourth proportional to 13,591.73, 20,363.98 and 7,356.03 is: 11,021.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.73 : 20,363.98 = 7,356.03 : x
  2. Step 2: Convert to fraction form
    13,591.73/20,363.98 = 7,356.03/x
  3. Step 3: Cross multiply
    13,591.73x = 20,363.98 × 7,356.03
  4. Step 4: Simplify right side
    13,591.73x = 149,798,047.80
  5. Step 5: Solve for x
    x = 149,798,047.80/13,591.73
  6. Step 6: Final answer
    x = 11,021.27

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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.