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Finding the Third Proportional to 17,664 and 38,028

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Solution

The third proportional to 17,664 and 38,028 is: 81,868.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,664 : 38,028 = 38,028 : x
  2. Step 2: Convert to fraction form
    17,664/38,028 = 38,028/x
  3. Step 3: Cross multiply
    17,664x = 38,028 × 38,028
  4. Step 4: Simplify right side
    17,664x = 1,446,128,784
  5. Step 5: Solve for x
    x = 1,446,128,784/17,664
  6. Step 6: Final answer
    x = 81,868.70

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.