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Finding the Third Proportional to 13,925 and 21,329

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Solution

The third proportional to 13,925 and 21,329 is: 32,669.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925 : 21,329 = 21,329 : x
  2. Step 2: Convert to fraction form
    13,925/21,329 = 21,329/x
  3. Step 3: Cross multiply
    13,925x = 21,329 × 21,329
  4. Step 4: Simplify right side
    13,925x = 454,926,241
  5. Step 5: Solve for x
    x = 454,926,241/13,925
  6. Step 6: Final answer
    x = 32,669.75

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.