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Finding the Third Proportional to 1,932 and 4,740

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Solution

The third proportional to 1,932 and 4,740 is: 11,629.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932 : 4,740 = 4,740 : x
  2. Step 2: Convert to fraction form
    1,932/4,740 = 4,740/x
  3. Step 3: Cross multiply
    1,932x = 4,740 × 4,740
  4. Step 4: Simplify right side
    1,932x = 22,467,600
  5. Step 5: Solve for x
    x = 22,467,600/1,932
  6. Step 6: Final answer
    x = 11,629.19

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Why These Related Problems?

These problems maintain the same ratio (2.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.