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Finding the Third Proportional to 16,640 and 38,752

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Solution

The third proportional to 16,640 and 38,752 is: 90,247.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,640 : 38,752 = 38,752 : x
  2. Step 2: Convert to fraction form
    16,640/38,752 = 38,752/x
  3. Step 3: Cross multiply
    16,640x = 38,752 × 38,752
  4. Step 4: Simplify right side
    16,640x = 1,501,717,504
  5. Step 5: Solve for x
    x = 1,501,717,504/16,640
  6. Step 6: Final answer
    x = 90,247.45

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.