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Finding the Third Proportional to 25,259.25 and 39,219

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Solution

The third proportional to 25,259.25 and 39,219 is: 60,893.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,259.25 : 39,219 = 39,219 : x
  2. Step 2: Convert to fraction form
    25,259.25/39,219 = 39,219/x
  3. Step 3: Cross multiply
    25,259.25x = 39,219 × 39,219
  4. Step 4: Simplify right side
    25,259.25x = 1,538,129,961
  5. Step 5: Solve for x
    x = 1,538,129,961/25,259.25
  6. Step 6: Final answer
    x = 60,893.73

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.