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Finding the Third Proportional to 19,119 and 28,683

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Solution

The third proportional to 19,119 and 28,683 is: 43,031.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119 : 28,683 = 28,683 : x
  2. Step 2: Convert to fraction form
    19,119/28,683 = 28,683/x
  3. Step 3: Cross multiply
    19,119x = 28,683 × 28,683
  4. Step 4: Simplify right side
    19,119x = 822,714,489
  5. Step 5: Solve for x
    x = 822,714,489/19,119
  6. Step 6: Final answer
    x = 43,031.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.