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Finding the Third Proportional to 13,198 and 19,365

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Solution

The third proportional to 13,198 and 19,365 is: 28,413.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198 : 19,365 = 19,365 : x
  2. Step 2: Convert to fraction form
    13,198/19,365 = 19,365/x
  3. Step 3: Cross multiply
    13,198x = 19,365 × 19,365
  4. Step 4: Simplify right side
    13,198x = 375,003,225
  5. Step 5: Solve for x
    x = 375,003,225/13,198
  6. Step 6: Final answer
    x = 28,413.64

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.