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Finding the Third Proportional to 10,491.75 and 16,416

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Solution

The third proportional to 10,491.75 and 16,416 is: 25,685.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,491.75 : 16,416 = 16,416 : x
  2. Step 2: Convert to fraction form
    10,491.75/16,416 = 16,416/x
  3. Step 3: Cross multiply
    10,491.75x = 16,416 × 16,416
  4. Step 4: Simplify right side
    10,491.75x = 269,485,056
  5. Step 5: Solve for x
    x = 269,485,056/10,491.75
  6. Step 6: Final answer
    x = 25,685.42

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.