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Finding the Third Proportional to 14,889 and 20,416

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Solution

The third proportional to 14,889 and 20,416 is: 27,994.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,889 : 20,416 = 20,416 : x
  2. Step 2: Convert to fraction form
    14,889/20,416 = 20,416/x
  3. Step 3: Cross multiply
    14,889x = 20,416 × 20,416
  4. Step 4: Simplify right side
    14,889x = 416,813,056
  5. Step 5: Solve for x
    x = 416,813,056/14,889
  6. Step 6: Final answer
    x = 27,994.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.