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Finding the Third Proportional to 1,372.13 and 2,960.25

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Solution

The third proportional to 1,372.13 and 2,960.25 is: 6,386.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.13 : 2,960.25 = 2,960.25 : x
  2. Step 2: Convert to fraction form
    1,372.13/2,960.25 = 2,960.25/x
  3. Step 3: Cross multiply
    1,372.13x = 2,960.25 × 2,960.25
  4. Step 4: Simplify right side
    1,372.13x = 8,763,080.06
  5. Step 5: Solve for x
    x = 8,763,080.06/1,372.13
  6. Step 6: Final answer
    x = 6,386.50

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.