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Finding the Third Proportional to 3,213 and 5,092.50

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Solution

The third proportional to 3,213 and 5,092.50 is: 8,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213 : 5,092.50 = 5,092.50 : x
  2. Step 2: Convert to fraction form
    3,213/5,092.50 = 5,092.50/x
  3. Step 3: Cross multiply
    3,213x = 5,092.50 × 5,092.50
  4. Step 4: Simplify right side
    3,213x = 25,933,556.25
  5. Step 5: Solve for x
    x = 25,933,556.25/3,213
  6. Step 6: Final answer
    x = 8,071.45

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.