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Finding the Third Proportional to 58,980 and 121,028

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Solution

The third proportional to 58,980 and 121,028 is: 248,351.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,980 : 121,028 = 121,028 : x
  2. Step 2: Convert to fraction form
    58,980/121,028 = 121,028/x
  3. Step 3: Cross multiply
    58,980x = 121,028 × 121,028
  4. Step 4: Simplify right side
    58,980x = 14,647,776,784
  5. Step 5: Solve for x
    x = 14,647,776,784/58,980
  6. Step 6: Final answer
    x = 248,351.59

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.