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Finding the Third Proportional to 19,365.75 and 27,270

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Solution

The third proportional to 19,365.75 and 27,270 is: 38,400.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,365.75 : 27,270 = 27,270 : x
  2. Step 2: Convert to fraction form
    19,365.75/27,270 = 27,270/x
  3. Step 3: Cross multiply
    19,365.75x = 27,270 × 27,270
  4. Step 4: Simplify right side
    19,365.75x = 743,652,900
  5. Step 5: Solve for x
    x = 743,652,900/19,365.75
  6. Step 6: Final answer
    x = 38,400.42

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.