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Finding the Third Proportional to 30,000 and 65,648

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Solution

The third proportional to 30,000 and 65,648 is: 143,655.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,000 : 65,648 = 65,648 : x
  2. Step 2: Convert to fraction form
    30,000/65,648 = 65,648/x
  3. Step 3: Cross multiply
    30,000x = 65,648 × 65,648
  4. Step 4: Simplify right side
    30,000x = 4,309,659,904
  5. Step 5: Solve for x
    x = 4,309,659,904/30,000
  6. Step 6: Final answer
    x = 143,655.33

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.