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Finding the Third Proportional to 5,476 and 11,815

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Solution

The third proportional to 5,476 and 11,815 is: 25,492.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,476 : 11,815 = 11,815 : x
  2. Step 2: Convert to fraction form
    5,476/11,815 = 11,815/x
  3. Step 3: Cross multiply
    5,476x = 11,815 × 11,815
  4. Step 4: Simplify right side
    5,476x = 139,594,225
  5. Step 5: Solve for x
    x = 139,594,225/5,476
  6. Step 6: Final answer
    x = 25,492.01

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.