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Finding the Third Proportional to 10,402 and 16,329

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Solution

The third proportional to 10,402 and 16,329 is: 25,633.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,402 : 16,329 = 16,329 : x
  2. Step 2: Convert to fraction form
    10,402/16,329 = 16,329/x
  3. Step 3: Cross multiply
    10,402x = 16,329 × 16,329
  4. Step 4: Simplify right side
    10,402x = 266,636,241
  5. Step 5: Solve for x
    x = 266,636,241/10,402
  6. Step 6: Final answer
    x = 25,633.17

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.