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Finding the Third Proportional to 14,926 and 20,921

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Solution

The third proportional to 14,926 and 20,921 is: 29,323.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,926 : 20,921 = 20,921 : x
  2. Step 2: Convert to fraction form
    14,926/20,921 = 20,921/x
  3. Step 3: Cross multiply
    14,926x = 20,921 × 20,921
  4. Step 4: Simplify right side
    14,926x = 437,688,241
  5. Step 5: Solve for x
    x = 437,688,241/14,926
  6. Step 6: Final answer
    x = 29,323.88

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.