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Finding the Third Proportional to 19,611 and 28,017

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Solution

The third proportional to 19,611 and 28,017 is: 40,026.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,611 : 28,017 = 28,017 : x
  2. Step 2: Convert to fraction form
    19,611/28,017 = 28,017/x
  3. Step 3: Cross multiply
    19,611x = 28,017 × 28,017
  4. Step 4: Simplify right side
    19,611x = 784,952,289
  5. Step 5: Solve for x
    x = 784,952,289/19,611
  6. Step 6: Final answer
    x = 40,026.12

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.