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Finding the Third Proportional to 12,934 and 20,513

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Solution

The third proportional to 12,934 and 20,513 is: 32,533.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,934 : 20,513 = 20,513 : x
  2. Step 2: Convert to fraction form
    12,934/20,513 = 20,513/x
  3. Step 3: Cross multiply
    12,934x = 20,513 × 20,513
  4. Step 4: Simplify right side
    12,934x = 420,783,169
  5. Step 5: Solve for x
    x = 420,783,169/12,934
  6. Step 6: Final answer
    x = 32,533.10

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.