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Finding the Third Proportional to 983 and 1,813

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Solution

The third proportional to 983 and 1,813 is: 3,343.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    983 : 1,813 = 1,813 : x
  2. Step 2: Convert to fraction form
    983/1,813 = 1,813/x
  3. Step 3: Cross multiply
    983x = 1,813 × 1,813
  4. Step 4: Simplify right side
    983x = 3,286,969
  5. Step 5: Solve for x
    x = 3,286,969/983
  6. Step 6: Final answer
    x = 3,343.81

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Why These Related Problems?

These problems maintain the same ratio (1.84) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.