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Finding the Third Proportional to 5,113.13 and 8,305.03

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Solution

The third proportional to 5,113.13 and 8,305.03 is: 13,489.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.13 : 8,305.03 = 8,305.03 : x
  2. Step 2: Convert to fraction form
    5,113.13/8,305.03 = 8,305.03/x
  3. Step 3: Cross multiply
    5,113.13x = 8,305.03 × 8,305.03
  4. Step 4: Simplify right side
    5,113.13x = 68,973,544.06
  5. Step 5: Solve for x
    x = 68,973,544.06/5,113.13
  6. Step 6: Final answer
    x = 13,489.51

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.