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Finding the Third Proportional to 13,769 and 15,045

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Solution

The third proportional to 13,769 and 15,045 is: 16,439.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769 : 15,045 = 15,045 : x
  2. Step 2: Convert to fraction form
    13,769/15,045 = 15,045/x
  3. Step 3: Cross multiply
    13,769x = 15,045 × 15,045
  4. Step 4: Simplify right side
    13,769x = 226,352,025
  5. Step 5: Solve for x
    x = 226,352,025/13,769
  6. Step 6: Final answer
    x = 16,439.25

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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.