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Finding the Third Proportional to 28,168 and 40,929

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Solution

The third proportional to 28,168 and 40,929 is: 59,471.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168 : 40,929 = 40,929 : x
  2. Step 2: Convert to fraction form
    28,168/40,929 = 40,929/x
  3. Step 3: Cross multiply
    28,168x = 40,929 × 40,929
  4. Step 4: Simplify right side
    28,168x = 1,675,183,041
  5. Step 5: Solve for x
    x = 1,675,183,041/28,168
  6. Step 6: Final answer
    x = 59,471.14

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.