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Finding the Third Proportional to 39,917 and 66,525.50

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Solution

The third proportional to 39,917 and 66,525.50 is: 110,871.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,917 : 66,525.50 = 66,525.50 : x
  2. Step 2: Convert to fraction form
    39,917/66,525.50 = 66,525.50/x
  3. Step 3: Cross multiply
    39,917x = 66,525.50 × 66,525.50
  4. Step 4: Simplify right side
    39,917x = 4,425,642,150.25
  5. Step 5: Solve for x
    x = 4,425,642,150.25/39,917
  6. Step 6: Final answer
    x = 110,871.11

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.