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Finding the Third Proportional to 16,911 and 19,575

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Solution

The third proportional to 16,911 and 19,575 is: 22,658.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,911 : 19,575 = 19,575 : x
  2. Step 2: Convert to fraction form
    16,911/19,575 = 19,575/x
  3. Step 3: Cross multiply
    16,911x = 19,575 × 19,575
  4. Step 4: Simplify right side
    16,911x = 383,180,625
  5. Step 5: Solve for x
    x = 383,180,625/16,911
  6. Step 6: Final answer
    x = 22,658.66

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Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.