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Finding the Third Proportional to 55,372 and 83,110

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Solution

The third proportional to 55,372 and 83,110 is: 124,743.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,372 : 83,110 = 83,110 : x
  2. Step 2: Convert to fraction form
    55,372/83,110 = 83,110/x
  3. Step 3: Cross multiply
    55,372x = 83,110 × 83,110
  4. Step 4: Simplify right side
    55,372x = 6,907,272,100
  5. Step 5: Solve for x
    x = 6,907,272,100/55,372
  6. Step 6: Final answer
    x = 124,743.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.