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Finding the Third Proportional to 16,911 and 25,370

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Solution

The third proportional to 16,911 and 25,370 is: 38,060.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,911 : 25,370 = 25,370 : x
  2. Step 2: Convert to fraction form
    16,911/25,370 = 25,370/x
  3. Step 3: Cross multiply
    16,911x = 25,370 × 25,370
  4. Step 4: Simplify right side
    16,911x = 643,636,900
  5. Step 5: Solve for x
    x = 643,636,900/16,911
  6. Step 6: Final answer
    x = 38,060.25

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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.