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Finding the Third Proportional to 12,969 and 14,877

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Solution

The third proportional to 12,969 and 14,877 is: 17,065.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,969 : 14,877 = 14,877 : x
  2. Step 2: Convert to fraction form
    12,969/14,877 = 14,877/x
  3. Step 3: Cross multiply
    12,969x = 14,877 × 14,877
  4. Step 4: Simplify right side
    12,969x = 221,325,129
  5. Step 5: Solve for x
    x = 221,325,129/12,969
  6. Step 6: Final answer
    x = 17,065.71

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.