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Finding the Third Proportional to 2,958.50 and 6,442

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Solution

The third proportional to 2,958.50 and 6,442 is: 14,027.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,958.50 : 6,442 = 6,442 : x
  2. Step 2: Convert to fraction form
    2,958.50/6,442 = 6,442/x
  3. Step 3: Cross multiply
    2,958.50x = 6,442 × 6,442
  4. Step 4: Simplify right side
    2,958.50x = 41,499,364
  5. Step 5: Solve for x
    x = 41,499,364/2,958.50
  6. Step 6: Final answer
    x = 14,027.16

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.