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Finding the Third Proportional to 5,699 and 12,520

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Solution

The third proportional to 5,699 and 12,520 is: 27,504.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,699 : 12,520 = 12,520 : x
  2. Step 2: Convert to fraction form
    5,699/12,520 = 12,520/x
  3. Step 3: Cross multiply
    5,699x = 12,520 × 12,520
  4. Step 4: Simplify right side
    5,699x = 156,750,400
  5. Step 5: Solve for x
    x = 156,750,400/5,699
  6. Step 6: Final answer
    x = 27,504.90

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.