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Finding the Third Proportional to 3,372.50 and 4,887

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Solution

The third proportional to 3,372.50 and 4,887 is: 7,081.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,372.50 : 4,887 = 4,887 : x
  2. Step 2: Convert to fraction form
    3,372.50/4,887 = 4,887/x
  3. Step 3: Cross multiply
    3,372.50x = 4,887 × 4,887
  4. Step 4: Simplify right side
    3,372.50x = 23,882,769
  5. Step 5: Solve for x
    x = 23,882,769/3,372.50
  6. Step 6: Final answer
    x = 7,081.62

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.