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Finding the Third Proportional to 7,523.25 and 11,643

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Solution

The third proportional to 7,523.25 and 11,643 is: 18,018.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,523.25 : 11,643 = 11,643 : x
  2. Step 2: Convert to fraction form
    7,523.25/11,643 = 11,643/x
  3. Step 3: Cross multiply
    7,523.25x = 11,643 × 11,643
  4. Step 4: Simplify right side
    7,523.25x = 135,559,449
  5. Step 5: Solve for x
    x = 135,559,449/7,523.25
  6. Step 6: Final answer
    x = 18,018.74

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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.