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Finding the Third Proportional to 463.50 and 699.75

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Solution

The third proportional to 463.50 and 699.75 is: 1,056.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.50 : 699.75 = 699.75 : x
  2. Step 2: Convert to fraction form
    463.50/699.75 = 699.75/x
  3. Step 3: Cross multiply
    463.50x = 699.75 × 699.75
  4. Step 4: Simplify right side
    463.50x = 489,650.06
  5. Step 5: Solve for x
    x = 489,650.06/463.50
  6. Step 6: Final answer
    x = 1,056.42

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.