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Finding the Third Proportional to 22,378.50 and 30,285

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Solution

The third proportional to 22,378.50 and 30,285 is: 40,984.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,378.50 : 30,285 = 30,285 : x
  2. Step 2: Convert to fraction form
    22,378.50/30,285 = 30,285/x
  3. Step 3: Cross multiply
    22,378.50x = 30,285 × 30,285
  4. Step 4: Simplify right side
    22,378.50x = 917,181,225
  5. Step 5: Solve for x
    x = 917,181,225/22,378.50
  6. Step 6: Final answer
    x = 40,984.93

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.