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Finding the Third Proportional to 12,381 and 14,055

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Solution

The third proportional to 12,381 and 14,055 is: 15,955.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381 : 14,055 = 14,055 : x
  2. Step 2: Convert to fraction form
    12,381/14,055 = 14,055/x
  3. Step 3: Cross multiply
    12,381x = 14,055 × 14,055
  4. Step 4: Simplify right side
    12,381x = 197,543,025
  5. Step 5: Solve for x
    x = 197,543,025/12,381
  6. Step 6: Final answer
    x = 15,955.34

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.