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Finding the Third Proportional to 5,674.50 and 9,378

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Solution

The third proportional to 5,674.50 and 9,378 is: 15,498.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,674.50 : 9,378 = 9,378 : x
  2. Step 2: Convert to fraction form
    5,674.50/9,378 = 9,378/x
  3. Step 3: Cross multiply
    5,674.50x = 9,378 × 9,378
  4. Step 4: Simplify right side
    5,674.50x = 87,946,884
  5. Step 5: Solve for x
    x = 87,946,884/5,674.50
  6. Step 6: Final answer
    x = 15,498.61

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.