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Finding the Third Proportional to 15,706.50 and 33,231

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Solution

The third proportional to 15,706.50 and 33,231 is: 70,308.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,706.50 : 33,231 = 33,231 : x
  2. Step 2: Convert to fraction form
    15,706.50/33,231 = 33,231/x
  3. Step 3: Cross multiply
    15,706.50x = 33,231 × 33,231
  4. Step 4: Simplify right side
    15,706.50x = 1,104,299,361
  5. Step 5: Solve for x
    x = 1,104,299,361/15,706.50
  6. Step 6: Final answer
    x = 70,308.43

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.