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Finding the Third Proportional to 55,772 and 122,560

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Solution

The third proportional to 55,772 and 122,560 is: 269,327.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,772 : 122,560 = 122,560 : x
  2. Step 2: Convert to fraction form
    55,772/122,560 = 122,560/x
  3. Step 3: Cross multiply
    55,772x = 122,560 × 122,560
  4. Step 4: Simplify right side
    55,772x = 15,020,953,600
  5. Step 5: Solve for x
    x = 15,020,953,600/55,772
  6. Step 6: Final answer
    x = 269,327.86

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.