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Finding the Third Proportional to 212,100 and 448,740

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Solution

The third proportional to 212,100 and 448,740 is: 949,399.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,100 : 448,740 = 448,740 : x
  2. Step 2: Convert to fraction form
    212,100/448,740 = 448,740/x
  3. Step 3: Cross multiply
    212,100x = 448,740 × 448,740
  4. Step 4: Simplify right side
    212,100x = 201,367,587,600
  5. Step 5: Solve for x
    x = 201,367,587,600/212,100
  6. Step 6: Final answer
    x = 949,399.28

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.