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Finding the Third Proportional to 11,871 and 25,645.50

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Solution

The third proportional to 11,871 and 25,645.50 is: 55,403.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,871 : 25,645.50 = 25,645.50 : x
  2. Step 2: Convert to fraction form
    11,871/25,645.50 = 25,645.50/x
  3. Step 3: Cross multiply
    11,871x = 25,645.50 × 25,645.50
  4. Step 4: Simplify right side
    11,871x = 657,691,670.25
  5. Step 5: Solve for x
    x = 657,691,670.25/11,871
  6. Step 6: Final answer
    x = 55,403.22

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.