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Finding the Third Proportional to 976.75 and 2,055.75

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Solution

The third proportional to 976.75 and 2,055.75 is: 4,326.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.75 : 2,055.75 = 2,055.75 : x
  2. Step 2: Convert to fraction form
    976.75/2,055.75 = 2,055.75/x
  3. Step 3: Cross multiply
    976.75x = 2,055.75 × 2,055.75
  4. Step 4: Simplify right side
    976.75x = 4,226,108.06
  5. Step 5: Solve for x
    x = 4,226,108.06/976.75
  6. Step 6: Final answer
    x = 4,326.70

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.