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Finding the Third Proportional to 11,355 and 16,219.50

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Solution

The third proportional to 11,355 and 16,219.50 is: 23,167.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,355 : 16,219.50 = 16,219.50 : x
  2. Step 2: Convert to fraction form
    11,355/16,219.50 = 16,219.50/x
  3. Step 3: Cross multiply
    11,355x = 16,219.50 × 16,219.50
  4. Step 4: Simplify right side
    11,355x = 263,072,180.25
  5. Step 5: Solve for x
    x = 263,072,180.25/11,355
  6. Step 6: Final answer
    x = 23,167.96

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.