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Finding the Third Proportional to 12,162 and 14,430

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Solution

The third proportional to 12,162 and 14,430 is: 17,120.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162 : 14,430 = 14,430 : x
  2. Step 2: Convert to fraction form
    12,162/14,430 = 14,430/x
  3. Step 3: Cross multiply
    12,162x = 14,430 × 14,430
  4. Step 4: Simplify right side
    12,162x = 208,224,900
  5. Step 5: Solve for x
    x = 208,224,900/12,162
  6. Step 6: Final answer
    x = 17,120.94

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Why These Related Problems?

These problems maintain the same ratio (1.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.