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Finding the Third Proportional to 19,236 and 28,170

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Solution

The third proportional to 19,236 and 28,170 is: 41,253.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,236 : 28,170 = 28,170 : x
  2. Step 2: Convert to fraction form
    19,236/28,170 = 28,170/x
  3. Step 3: Cross multiply
    19,236x = 28,170 × 28,170
  4. Step 4: Simplify right side
    19,236x = 793,548,900
  5. Step 5: Solve for x
    x = 793,548,900/19,236
  6. Step 6: Final answer
    x = 41,253.32

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.