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Finding the Third Proportional to 8,242.25 and 12,571

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Solution

The third proportional to 8,242.25 and 12,571 is: 19,173.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,242.25 : 12,571 = 12,571 : x
  2. Step 2: Convert to fraction form
    8,242.25/12,571 = 12,571/x
  3. Step 3: Cross multiply
    8,242.25x = 12,571 × 12,571
  4. Step 4: Simplify right side
    8,242.25x = 158,030,041
  5. Step 5: Solve for x
    x = 158,030,041/8,242.25
  6. Step 6: Final answer
    x = 19,173.17

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.