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Finding the Third Proportional to 2,318.63 and 5,155.63

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Solution

The third proportional to 2,318.63 and 5,155.63 is: 11,463.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.63 : 5,155.63 = 5,155.63 : x
  2. Step 2: Convert to fraction form
    2,318.63/5,155.63 = 5,155.63/x
  3. Step 3: Cross multiply
    2,318.63x = 5,155.63 × 5,155.63
  4. Step 4: Simplify right side
    2,318.63x = 26,580,469.14
  5. Step 5: Solve for x
    x = 26,580,469.14/2,318.63
  6. Step 6: Final answer
    x = 11,463.89

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.