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Finding the Third Proportional to 976.50 and 1,887

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Solution

The third proportional to 976.50 and 1,887 is: 3,646.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.50 : 1,887 = 1,887 : x
  2. Step 2: Convert to fraction form
    976.50/1,887 = 1,887/x
  3. Step 3: Cross multiply
    976.50x = 1,887 × 1,887
  4. Step 4: Simplify right side
    976.50x = 3,560,769
  5. Step 5: Solve for x
    x = 3,560,769/976.50
  6. Step 6: Final answer
    x = 3,646.46

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Why These Related Problems?

These problems maintain the same ratio (1.93) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.