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Finding the Third Proportional to 20,619 and 32,006.25

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Solution

The third proportional to 20,619 and 32,006.25 is: 49,682.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,619 : 32,006.25 = 32,006.25 : x
  2. Step 2: Convert to fraction form
    20,619/32,006.25 = 32,006.25/x
  3. Step 3: Cross multiply
    20,619x = 32,006.25 × 32,006.25
  4. Step 4: Simplify right side
    20,619x = 1,024,400,039.06
  5. Step 5: Solve for x
    x = 1,024,400,039.06/20,619
  6. Step 6: Final answer
    x = 49,682.33

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.