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Finding the Third Proportional to 15,970.50 and 34,857

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Solution

The third proportional to 15,970.50 and 34,857 is: 76,078.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,970.50 : 34,857 = 34,857 : x
  2. Step 2: Convert to fraction form
    15,970.50/34,857 = 34,857/x
  3. Step 3: Cross multiply
    15,970.50x = 34,857 × 34,857
  4. Step 4: Simplify right side
    15,970.50x = 1,215,010,449
  5. Step 5: Solve for x
    x = 1,215,010,449/15,970.50
  6. Step 6: Final answer
    x = 76,078.42

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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.