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Finding the Third Proportional to 829.83 and 1,283.13

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Solution

The third proportional to 829.83 and 1,283.13 is: 1,984.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    829.83 : 1,283.13 = 1,283.13 : x
  2. Step 2: Convert to fraction form
    829.83/1,283.13 = 1,283.13/x
  3. Step 3: Cross multiply
    829.83x = 1,283.13 × 1,283.13
  4. Step 4: Simplify right side
    829.83x = 1,646,429.81
  5. Step 5: Solve for x
    x = 1,646,429.81/829.83
  6. Step 6: Final answer
    x = 1,984.06

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.