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Finding the Third Proportional to 20,928 and 29,752

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Solution

The third proportional to 20,928 and 29,752 is: 42,296.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,928 : 29,752 = 29,752 : x
  2. Step 2: Convert to fraction form
    20,928/29,752 = 29,752/x
  3. Step 3: Cross multiply
    20,928x = 29,752 × 29,752
  4. Step 4: Simplify right side
    20,928x = 885,181,504
  5. Step 5: Solve for x
    x = 885,181,504/20,928
  6. Step 6: Final answer
    x = 42,296.52

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.