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Finding the Third Proportional to 2,900.25 and 6,387.75

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Solution

The third proportional to 2,900.25 and 6,387.75 is: 14,068.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.25 : 6,387.75 = 6,387.75 : x
  2. Step 2: Convert to fraction form
    2,900.25/6,387.75 = 6,387.75/x
  3. Step 3: Cross multiply
    2,900.25x = 6,387.75 × 6,387.75
  4. Step 4: Simplify right side
    2,900.25x = 40,803,350.06
  5. Step 5: Solve for x
    x = 40,803,350.06/2,900.25
  6. Step 6: Final answer
    x = 14,068.91

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.