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Finding the Third Proportional to 407.75 and 966.50

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Solution

The third proportional to 407.75 and 966.50 is: 2,290.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    407.75 : 966.50 = 966.50 : x
  2. Step 2: Convert to fraction form
    407.75/966.50 = 966.50/x
  3. Step 3: Cross multiply
    407.75x = 966.50 × 966.50
  4. Step 4: Simplify right side
    407.75x = 934,122.25
  5. Step 5: Solve for x
    x = 934,122.25/407.75
  6. Step 6: Final answer
    x = 2,290.92

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.