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Finding the Third Proportional to 1,382.50 and 2,969

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Solution

The third proportional to 1,382.50 and 2,969 is: 6,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382.50 : 2,969 = 2,969 : x
  2. Step 2: Convert to fraction form
    1,382.50/2,969 = 2,969/x
  3. Step 3: Cross multiply
    1,382.50x = 2,969 × 2,969
  4. Step 4: Simplify right side
    1,382.50x = 8,814,961
  5. Step 5: Solve for x
    x = 8,814,961/1,382.50
  6. Step 6: Final answer
    x = 6,376.10

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.