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Finding the Third Proportional to 19,338 and 40,752

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Solution

The third proportional to 19,338 and 40,752 is: 85,878.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,338 : 40,752 = 40,752 : x
  2. Step 2: Convert to fraction form
    19,338/40,752 = 40,752/x
  3. Step 3: Cross multiply
    19,338x = 40,752 × 40,752
  4. Step 4: Simplify right side
    19,338x = 1,660,725,504
  5. Step 5: Solve for x
    x = 1,660,725,504/19,338
  6. Step 6: Final answer
    x = 85,878.87

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.