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Finding the Third Proportional to 15,388 and 33,476

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Solution

The third proportional to 15,388 and 33,476 is: 72,825.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,388 : 33,476 = 33,476 : x
  2. Step 2: Convert to fraction form
    15,388/33,476 = 33,476/x
  3. Step 3: Cross multiply
    15,388x = 33,476 × 33,476
  4. Step 4: Simplify right side
    15,388x = 1,120,642,576
  5. Step 5: Solve for x
    x = 1,120,642,576/15,388
  6. Step 6: Final answer
    x = 72,825.75

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.