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Finding the Third Proportional to 8,340 and 13,482

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Solution

The third proportional to 8,340 and 13,482 is: 21,794.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340 : 13,482 = 13,482 : x
  2. Step 2: Convert to fraction form
    8,340/13,482 = 13,482/x
  3. Step 3: Cross multiply
    8,340x = 13,482 × 13,482
  4. Step 4: Simplify right side
    8,340x = 181,764,324
  5. Step 5: Solve for x
    x = 181,764,324/8,340
  6. Step 6: Final answer
    x = 21,794.28

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.