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Finding the Third Proportional to 13,770 and 22,176

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Solution

The third proportional to 13,770 and 22,176 is: 35,713.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770 : 22,176 = 22,176 : x
  2. Step 2: Convert to fraction form
    13,770/22,176 = 22,176/x
  3. Step 3: Cross multiply
    13,770x = 22,176 × 22,176
  4. Step 4: Simplify right side
    13,770x = 491,774,976
  5. Step 5: Solve for x
    x = 491,774,976/13,770
  6. Step 6: Final answer
    x = 35,713.51

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.