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Finding the Third Proportional to 491.50 and 966.50

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Solution

The third proportional to 491.50 and 966.50 is: 1,900.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.50 : 966.50 = 966.50 : x
  2. Step 2: Convert to fraction form
    491.50/966.50 = 966.50/x
  3. Step 3: Cross multiply
    491.50x = 966.50 × 966.50
  4. Step 4: Simplify right side
    491.50x = 934,122.25
  5. Step 5: Solve for x
    x = 934,122.25/491.50
  6. Step 6: Final answer
    x = 1,900.55

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.