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Finding the Third Proportional to 5,322 and 8,235

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Solution

The third proportional to 5,322 and 8,235 is: 12,742.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,322 : 8,235 = 8,235 : x
  2. Step 2: Convert to fraction form
    5,322/8,235 = 8,235/x
  3. Step 3: Cross multiply
    5,322x = 8,235 × 8,235
  4. Step 4: Simplify right side
    5,322x = 67,815,225
  5. Step 5: Solve for x
    x = 67,815,225/5,322
  6. Step 6: Final answer
    x = 12,742.43

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.