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Finding the Third Proportional to 13,328 and 19,612

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Solution

The third proportional to 13,328 and 19,612 is: 28,858.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328 : 19,612 = 19,612 : x
  2. Step 2: Convert to fraction form
    13,328/19,612 = 19,612/x
  3. Step 3: Cross multiply
    13,328x = 19,612 × 19,612
  4. Step 4: Simplify right side
    13,328x = 384,630,544
  5. Step 5: Solve for x
    x = 384,630,544/13,328
  6. Step 6: Final answer
    x = 28,858.83

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.