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Finding the Third Proportional to 1,723.78 and 4,651.17

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Solution

The third proportional to 1,723.78 and 4,651.17 is: 12,549.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.78 : 4,651.17 = 4,651.17 : x
  2. Step 2: Convert to fraction form
    1,723.78/4,651.17 = 4,651.17/x
  3. Step 3: Cross multiply
    1,723.78x = 4,651.17 × 4,651.17
  4. Step 4: Simplify right side
    1,723.78x = 21,633,399.81
  5. Step 5: Solve for x
    x = 21,633,399.81/1,723.78
  6. Step 6: Final answer
    x = 12,549.97

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Why These Related Problems?

These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.