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Finding the Third Proportional to 7,619.06 and 18,918.56

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Solution

The third proportional to 7,619.06 and 18,918.56 is: 46,975.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.06 : 18,918.56 = 18,918.56 : x
  2. Step 2: Convert to fraction form
    7,619.06/18,918.56 = 18,918.56/x
  3. Step 3: Cross multiply
    7,619.06x = 18,918.56 × 18,918.56
  4. Step 4: Simplify right side
    7,619.06x = 357,912,007.07
  5. Step 5: Solve for x
    x = 357,912,007.07/7,619.06
  6. Step 6: Final answer
    x = 46,975.86

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Why These Related Problems?

These problems maintain the same ratio (2.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.