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Finding the Third Proportional to 10,476 and 15,680

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Solution

The third proportional to 10,476 and 15,680 is: 23,469.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,476 : 15,680 = 15,680 : x
  2. Step 2: Convert to fraction form
    10,476/15,680 = 15,680/x
  3. Step 3: Cross multiply
    10,476x = 15,680 × 15,680
  4. Step 4: Simplify right side
    10,476x = 245,862,400
  5. Step 5: Solve for x
    x = 245,862,400/10,476
  6. Step 6: Final answer
    x = 23,469.11

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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.