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Finding the Third Proportional to 19,338.75 and 33,615

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Solution

The third proportional to 19,338.75 and 33,615 is: 58,430.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,338.75 : 33,615 = 33,615 : x
  2. Step 2: Convert to fraction form
    19,338.75/33,615 = 33,615/x
  3. Step 3: Cross multiply
    19,338.75x = 33,615 × 33,615
  4. Step 4: Simplify right side
    19,338.75x = 1,129,968,225
  5. Step 5: Solve for x
    x = 1,129,968,225/19,338.75
  6. Step 6: Final answer
    x = 58,430.26

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Why These Related Problems?

These problems maintain the same ratio (1.74) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.