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Finding the Third Proportional to 7,862 and 16,928

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Solution

The third proportional to 7,862 and 16,928 is: 36,448.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,862 : 16,928 = 16,928 : x
  2. Step 2: Convert to fraction form
    7,862/16,928 = 16,928/x
  3. Step 3: Cross multiply
    7,862x = 16,928 × 16,928
  4. Step 4: Simplify right side
    7,862x = 286,557,184
  5. Step 5: Solve for x
    x = 286,557,184/7,862
  6. Step 6: Final answer
    x = 36,448.38

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.