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Finding the Third Proportional to 30,660 and 46,230

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Solution

The third proportional to 30,660 and 46,230 is: 69,706.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,660 : 46,230 = 46,230 : x
  2. Step 2: Convert to fraction form
    30,660/46,230 = 46,230/x
  3. Step 3: Cross multiply
    30,660x = 46,230 × 46,230
  4. Step 4: Simplify right side
    30,660x = 2,137,212,900
  5. Step 5: Solve for x
    x = 2,137,212,900/30,660
  6. Step 6: Final answer
    x = 69,706.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.