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Finding the Third Proportional to 600.75 and 981.28

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Solution

The third proportional to 600.75 and 981.28 is: 1,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.75 : 981.28 = 981.28 : x
  2. Step 2: Convert to fraction form
    600.75/981.28 = 981.28/x
  3. Step 3: Cross multiply
    600.75x = 981.28 × 981.28
  4. Step 4: Simplify right side
    600.75x = 962,912.89
  5. Step 5: Solve for x
    x = 962,912.89/600.75
  6. Step 6: Final answer
    x = 1,602.85

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.