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Finding the Third Proportional to 7,374 and 13,740

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Solution

The third proportional to 7,374 and 13,740 is: 25,601.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374 : 13,740 = 13,740 : x
  2. Step 2: Convert to fraction form
    7,374/13,740 = 13,740/x
  3. Step 3: Cross multiply
    7,374x = 13,740 × 13,740
  4. Step 4: Simplify right side
    7,374x = 188,787,600
  5. Step 5: Solve for x
    x = 188,787,600/7,374
  6. Step 6: Final answer
    x = 25,601.79

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.