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Finding the Third Proportional to 465.75 and 999.56

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Solution

The third proportional to 465.75 and 999.56 is: 2,145.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.75 : 999.56 = 999.56 : x
  2. Step 2: Convert to fraction form
    465.75/999.56 = 999.56/x
  3. Step 3: Cross multiply
    465.75x = 999.56 × 999.56
  4. Step 4: Simplify right side
    465.75x = 999,125.19
  5. Step 5: Solve for x
    x = 999,125.19/465.75
  6. Step 6: Final answer
    x = 2,145.20

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.