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Finding the Third Proportional to 55,520 and 120,912

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Solution

The third proportional to 55,520 and 120,912 is: 263,323.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,520 : 120,912 = 120,912 : x
  2. Step 2: Convert to fraction form
    55,520/120,912 = 120,912/x
  3. Step 3: Cross multiply
    55,520x = 120,912 × 120,912
  4. Step 4: Simplify right side
    55,520x = 14,619,711,744
  5. Step 5: Solve for x
    x = 14,619,711,744/55,520
  6. Step 6: Final answer
    x = 263,323.34

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.