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Finding the Third Proportional to 7,755.75 and 18,417.38

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Solution

The third proportional to 7,755.75 and 18,417.38 is: 43,735.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.75 : 18,417.38 = 18,417.38 : x
  2. Step 2: Convert to fraction form
    7,755.75/18,417.38 = 18,417.38/x
  3. Step 3: Cross multiply
    7,755.75x = 18,417.38 × 18,417.38
  4. Step 4: Simplify right side
    7,755.75x = 339,199,701.89
  5. Step 5: Solve for x
    x = 339,199,701.89/7,755.75
  6. Step 6: Final answer
    x = 43,735.25

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.