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Finding the Third Proportional to 7,938 and 17,955

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Solution

The third proportional to 7,938 and 17,955 is: 40,612.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938 : 17,955 = 17,955 : x
  2. Step 2: Convert to fraction form
    7,938/17,955 = 17,955/x
  3. Step 3: Cross multiply
    7,938x = 17,955 × 17,955
  4. Step 4: Simplify right side
    7,938x = 322,382,025
  5. Step 5: Solve for x
    x = 322,382,025/7,938
  6. Step 6: Final answer
    x = 40,612.50

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Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.