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Finding the Third Proportional to 7,439 and 11,148

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Solution

The third proportional to 7,439 and 11,148 is: 16,706.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439 : 11,148 = 11,148 : x
  2. Step 2: Convert to fraction form
    7,439/11,148 = 11,148/x
  3. Step 3: Cross multiply
    7,439x = 11,148 × 11,148
  4. Step 4: Simplify right side
    7,439x = 124,277,904
  5. Step 5: Solve for x
    x = 124,277,904/7,439
  6. Step 6: Final answer
    x = 16,706.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.