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Finding the Third Proportional to 30,418.50 and 45,504

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Solution

The third proportional to 30,418.50 and 45,504 is: 68,070.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,418.50 : 45,504 = 45,504 : x
  2. Step 2: Convert to fraction form
    30,418.50/45,504 = 45,504/x
  3. Step 3: Cross multiply
    30,418.50x = 45,504 × 45,504
  4. Step 4: Simplify right side
    30,418.50x = 2,070,614,016
  5. Step 5: Solve for x
    x = 2,070,614,016/30,418.50
  6. Step 6: Final answer
    x = 68,070.88

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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.