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Finding the Third Proportional to 3,090 and 6,525

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Solution

The third proportional to 3,090 and 6,525 is: 13,778.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090 : 6,525 = 6,525 : x
  2. Step 2: Convert to fraction form
    3,090/6,525 = 6,525/x
  3. Step 3: Cross multiply
    3,090x = 6,525 × 6,525
  4. Step 4: Simplify right side
    3,090x = 42,575,625
  5. Step 5: Solve for x
    x = 42,575,625/3,090
  6. Step 6: Final answer
    x = 13,778.52

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.