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Finding the Third Proportional to 18,470.50 and 38,255

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Solution

The third proportional to 18,470.50 and 38,255 is: 79,231.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,470.50 : 38,255 = 38,255 : x
  2. Step 2: Convert to fraction form
    18,470.50/38,255 = 38,255/x
  3. Step 3: Cross multiply
    18,470.50x = 38,255 × 38,255
  4. Step 4: Simplify right side
    18,470.50x = 1,463,445,025
  5. Step 5: Solve for x
    x = 1,463,445,025/18,470.50
  6. Step 6: Final answer
    x = 79,231.48

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.