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Finding the Third Proportional to 14,764 and 20,678

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Solution

The third proportional to 14,764 and 20,678 is: 28,960.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,764 : 20,678 = 20,678 : x
  2. Step 2: Convert to fraction form
    14,764/20,678 = 20,678/x
  3. Step 3: Cross multiply
    14,764x = 20,678 × 20,678
  4. Step 4: Simplify right side
    14,764x = 427,579,684
  5. Step 5: Solve for x
    x = 427,579,684/14,764
  6. Step 6: Final answer
    x = 28,960.96

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.