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Finding the Third Proportional to 12,170 and 26,157

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Solution

The third proportional to 12,170 and 26,157 is: 56,219.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170 : 26,157 = 26,157 : x
  2. Step 2: Convert to fraction form
    12,170/26,157 = 26,157/x
  3. Step 3: Cross multiply
    12,170x = 26,157 × 26,157
  4. Step 4: Simplify right side
    12,170x = 684,188,649
  5. Step 5: Solve for x
    x = 684,188,649/12,170
  6. Step 6: Final answer
    x = 56,219.28

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.