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Finding the Third Proportional to 30,744 and 41,721.75

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Solution

The third proportional to 30,744 and 41,721.75 is: 56,619.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,744 : 41,721.75 = 41,721.75 : x
  2. Step 2: Convert to fraction form
    30,744/41,721.75 = 41,721.75/x
  3. Step 3: Cross multiply
    30,744x = 41,721.75 × 41,721.75
  4. Step 4: Simplify right side
    30,744x = 1,740,704,423.06
  5. Step 5: Solve for x
    x = 1,740,704,423.06/30,744
  6. Step 6: Final answer
    x = 56,619.32

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.