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Finding the Third Proportional to 14,911 and 20,179

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Solution

The third proportional to 14,911 and 20,179 is: 27,308.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,911 : 20,179 = 20,179 : x
  2. Step 2: Convert to fraction form
    14,911/20,179 = 20,179/x
  3. Step 3: Cross multiply
    14,911x = 20,179 × 20,179
  4. Step 4: Simplify right side
    14,911x = 407,192,041
  5. Step 5: Solve for x
    x = 407,192,041/14,911
  6. Step 6: Final answer
    x = 27,308.16

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.