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Finding the Third Proportional to 38,945 and 55,501

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Solution

The third proportional to 38,945 and 55,501 is: 79,095.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,945 : 55,501 = 55,501 : x
  2. Step 2: Convert to fraction form
    38,945/55,501 = 55,501/x
  3. Step 3: Cross multiply
    38,945x = 55,501 × 55,501
  4. Step 4: Simplify right side
    38,945x = 3,080,361,001
  5. Step 5: Solve for x
    x = 3,080,361,001/38,945
  6. Step 6: Final answer
    x = 79,095.16

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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.