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Finding the Third Proportional to 28,923 and 63,381

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Solution

The third proportional to 28,923 and 63,381 is: 138,891.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,923 : 63,381 = 63,381 : x
  2. Step 2: Convert to fraction form
    28,923/63,381 = 63,381/x
  3. Step 3: Cross multiply
    28,923x = 63,381 × 63,381
  4. Step 4: Simplify right side
    28,923x = 4,017,151,161
  5. Step 5: Solve for x
    x = 4,017,151,161/28,923
  6. Step 6: Final answer
    x = 138,891.23

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.