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Finding the Third Proportional to 28,338 and 43,726

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Solution

The third proportional to 28,338 and 43,726 is: 67,469.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,338 : 43,726 = 43,726 : x
  2. Step 2: Convert to fraction form
    28,338/43,726 = 43,726/x
  3. Step 3: Cross multiply
    28,338x = 43,726 × 43,726
  4. Step 4: Simplify right side
    28,338x = 1,911,963,076
  5. Step 5: Solve for x
    x = 1,911,963,076/28,338
  6. Step 6: Final answer
    x = 67,469.94

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.