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Finding the Third Proportional to 977.06 and 1,383.96

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Solution

The third proportional to 977.06 and 1,383.96 is: 1,960.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    977.06 : 1,383.96 = 1,383.96 : x
  2. Step 2: Convert to fraction form
    977.06/1,383.96 = 1,383.96/x
  3. Step 3: Cross multiply
    977.06x = 1,383.96 × 1,383.96
  4. Step 4: Simplify right side
    977.06x = 1,915,347.88
  5. Step 5: Solve for x
    x = 1,915,347.88/977.06
  6. Step 6: Final answer
    x = 1,960.31

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.