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Finding the Third Proportional to 12,918 and 14,052

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Solution

The third proportional to 12,918 and 14,052 is: 15,285.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918 : 14,052 = 14,052 : x
  2. Step 2: Convert to fraction form
    12,918/14,052 = 14,052/x
  3. Step 3: Cross multiply
    12,918x = 14,052 × 14,052
  4. Step 4: Simplify right side
    12,918x = 197,458,704
  5. Step 5: Solve for x
    x = 197,458,704/12,918
  6. Step 6: Final answer
    x = 15,285.55

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.