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Finding the Third Proportional to 3,389.63 and 7,314.75

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Solution

The third proportional to 3,389.63 and 7,314.75 is: 15,785.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.63 : 7,314.75 = 7,314.75 : x
  2. Step 2: Convert to fraction form
    3,389.63/7,314.75 = 7,314.75/x
  3. Step 3: Cross multiply
    3,389.63x = 7,314.75 × 7,314.75
  4. Step 4: Simplify right side
    3,389.63x = 53,505,567.56
  5. Step 5: Solve for x
    x = 53,505,567.56/3,389.63
  6. Step 6: Final answer
    x = 15,785.10

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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.