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Finding the Third Proportional to 57,800.25 and 122,985

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Solution

The third proportional to 57,800.25 and 122,985 is: 261,682.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,800.25 : 122,985 = 122,985 : x
  2. Step 2: Convert to fraction form
    57,800.25/122,985 = 122,985/x
  3. Step 3: Cross multiply
    57,800.25x = 122,985 × 122,985
  4. Step 4: Simplify right side
    57,800.25x = 15,125,310,225
  5. Step 5: Solve for x
    x = 15,125,310,225/57,800.25
  6. Step 6: Final answer
    x = 261,682.44

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.