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Finding the Third Proportional to 19,129.50 and 28,086

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Solution

The third proportional to 19,129.50 and 28,086 is: 41,235.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129.50 : 28,086 = 28,086 : x
  2. Step 2: Convert to fraction form
    19,129.50/28,086 = 28,086/x
  3. Step 3: Cross multiply
    19,129.50x = 28,086 × 28,086
  4. Step 4: Simplify right side
    19,129.50x = 788,823,396
  5. Step 5: Solve for x
    x = 788,823,396/19,129.50
  6. Step 6: Final answer
    x = 41,235.97

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.