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Finding the Third Proportional to 45,019.50 and 67,275

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Solution

The third proportional to 45,019.50 and 67,275 is: 100,532.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,019.50 : 67,275 = 67,275 : x
  2. Step 2: Convert to fraction form
    45,019.50/67,275 = 67,275/x
  3. Step 3: Cross multiply
    45,019.50x = 67,275 × 67,275
  4. Step 4: Simplify right side
    45,019.50x = 4,525,925,625
  5. Step 5: Solve for x
    x = 4,525,925,625/45,019.50
  6. Step 6: Final answer
    x = 100,532.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.