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Finding the Third Proportional to 492.75 and 973.13

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Solution

The third proportional to 492.75 and 973.13 is: 1,921.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.75 : 973.13 = 973.13 : x
  2. Step 2: Convert to fraction form
    492.75/973.13 = 973.13/x
  3. Step 3: Cross multiply
    492.75x = 973.13 × 973.13
  4. Step 4: Simplify right side
    492.75x = 946,972.27
  5. Step 5: Solve for x
    x = 946,972.27/492.75
  6. Step 6: Final answer
    x = 1,921.81

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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.