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Finding the Third Proportional to 30,859.50 and 46,212

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Solution

The third proportional to 30,859.50 and 46,212 is: 69,202.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,859.50 : 46,212 = 46,212 : x
  2. Step 2: Convert to fraction form
    30,859.50/46,212 = 46,212/x
  3. Step 3: Cross multiply
    30,859.50x = 46,212 × 46,212
  4. Step 4: Simplify right side
    30,859.50x = 2,135,548,944
  5. Step 5: Solve for x
    x = 2,135,548,944/30,859.50
  6. Step 6: Final answer
    x = 69,202.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.