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Finding the Third Proportional to 9,072 and 11,964

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Solution

The third proportional to 9,072 and 11,964 is: 15,777.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072 : 11,964 = 11,964 : x
  2. Step 2: Convert to fraction form
    9,072/11,964 = 11,964/x
  3. Step 3: Cross multiply
    9,072x = 11,964 × 11,964
  4. Step 4: Simplify right side
    9,072x = 143,137,296
  5. Step 5: Solve for x
    x = 143,137,296/9,072
  6. Step 6: Final answer
    x = 15,777.92

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.