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Finding the Third Proportional to 3,318.75 and 4,653

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Solution

The third proportional to 3,318.75 and 4,653 is: 6,523.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.75 : 4,653 = 4,653 : x
  2. Step 2: Convert to fraction form
    3,318.75/4,653 = 4,653/x
  3. Step 3: Cross multiply
    3,318.75x = 4,653 × 4,653
  4. Step 4: Simplify right side
    3,318.75x = 21,650,409
  5. Step 5: Solve for x
    x = 21,650,409/3,318.75
  6. Step 6: Final answer
    x = 6,523.66

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.