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Finding the Third Proportional to 28,168 and 40,928

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Solution

The third proportional to 28,168 and 40,928 is: 59,468.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168 : 40,928 = 40,928 : x
  2. Step 2: Convert to fraction form
    28,168/40,928 = 40,928/x
  3. Step 3: Cross multiply
    28,168x = 40,928 × 40,928
  4. Step 4: Simplify right side
    28,168x = 1,675,101,184
  5. Step 5: Solve for x
    x = 1,675,101,184/28,168
  6. Step 6: Final answer
    x = 59,468.23

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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.