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Finding the Third Proportional to 28,415.25 and 43,488

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Solution

The third proportional to 28,415.25 and 43,488 is: 66,556.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,415.25 : 43,488 = 43,488 : x
  2. Step 2: Convert to fraction form
    28,415.25/43,488 = 43,488/x
  3. Step 3: Cross multiply
    28,415.25x = 43,488 × 43,488
  4. Step 4: Simplify right side
    28,415.25x = 1,891,206,144
  5. Step 5: Solve for x
    x = 1,891,206,144/28,415.25
  6. Step 6: Final answer
    x = 66,556.03

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.