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Finding the Third Proportional to 19,872 and 32,184

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Solution

The third proportional to 19,872 and 32,184 is: 52,124.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872 : 32,184 = 32,184 : x
  2. Step 2: Convert to fraction form
    19,872/32,184 = 32,184/x
  3. Step 3: Cross multiply
    19,872x = 32,184 × 32,184
  4. Step 4: Simplify right side
    19,872x = 1,035,809,856
  5. Step 5: Solve for x
    x = 1,035,809,856/19,872
  6. Step 6: Final answer
    x = 52,124.09

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.