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Finding the Third Proportional to 8,948 and 19,680

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Solution

The third proportional to 8,948 and 19,680 is: 43,283.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948 : 19,680 = 19,680 : x
  2. Step 2: Convert to fraction form
    8,948/19,680 = 19,680/x
  3. Step 3: Cross multiply
    8,948x = 19,680 × 19,680
  4. Step 4: Simplify right side
    8,948x = 387,302,400
  5. Step 5: Solve for x
    x = 387,302,400/8,948
  6. Step 6: Final answer
    x = 43,283.68

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.