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Finding the Third Proportional to 11,643.50 and 17,491

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Solution

The third proportional to 11,643.50 and 17,491 is: 26,275.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,643.50 : 17,491 = 17,491 : x
  2. Step 2: Convert to fraction form
    11,643.50/17,491 = 17,491/x
  3. Step 3: Cross multiply
    11,643.50x = 17,491 × 17,491
  4. Step 4: Simplify right side
    11,643.50x = 305,935,081
  5. Step 5: Solve for x
    x = 305,935,081/11,643.50
  6. Step 6: Final answer
    x = 26,275.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.