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Finding the Third Proportional to 9,680 and 14,480

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Solution

The third proportional to 9,680 and 14,480 is: 21,660.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,680 : 14,480 = 14,480 : x
  2. Step 2: Convert to fraction form
    9,680/14,480 = 14,480/x
  3. Step 3: Cross multiply
    9,680x = 14,480 × 14,480
  4. Step 4: Simplify right side
    9,680x = 209,670,400
  5. Step 5: Solve for x
    x = 209,670,400/9,680
  6. Step 6: Final answer
    x = 21,660.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.