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Finding the Third Proportional to 28,858 and 43,173

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Solution

The third proportional to 28,858 and 43,173 is: 64,588.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,858 : 43,173 = 43,173 : x
  2. Step 2: Convert to fraction form
    28,858/43,173 = 43,173/x
  3. Step 3: Cross multiply
    28,858x = 43,173 × 43,173
  4. Step 4: Simplify right side
    28,858x = 1,863,907,929
  5. Step 5: Solve for x
    x = 1,863,907,929/28,858
  6. Step 6: Final answer
    x = 64,588.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.