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Finding the Third Proportional to 28,800 and 43,603

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Solution

The third proportional to 28,800 and 43,603 is: 66,014.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,800 : 43,603 = 43,603 : x
  2. Step 2: Convert to fraction form
    28,800/43,603 = 43,603/x
  3. Step 3: Cross multiply
    28,800x = 43,603 × 43,603
  4. Step 4: Simplify right side
    28,800x = 1,901,221,609
  5. Step 5: Solve for x
    x = 1,901,221,609/28,800
  6. Step 6: Final answer
    x = 66,014.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.