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Finding the Third Proportional to 8,196 and 11,280

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Solution

The third proportional to 8,196 and 11,280 is: 15,524.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,196 : 11,280 = 11,280 : x
  2. Step 2: Convert to fraction form
    8,196/11,280 = 11,280/x
  3. Step 3: Cross multiply
    8,196x = 11,280 × 11,280
  4. Step 4: Simplify right side
    8,196x = 127,238,400
  5. Step 5: Solve for x
    x = 127,238,400/8,196
  6. Step 6: Final answer
    x = 15,524.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.