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Finding the Third Proportional to 5,315.25 and 8,013.75

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Solution

The third proportional to 5,315.25 and 8,013.75 is: 12,082.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.25 : 8,013.75 = 8,013.75 : x
  2. Step 2: Convert to fraction form
    5,315.25/8,013.75 = 8,013.75/x
  3. Step 3: Cross multiply
    5,315.25x = 8,013.75 × 8,013.75
  4. Step 4: Simplify right side
    5,315.25x = 64,220,189.06
  5. Step 5: Solve for x
    x = 64,220,189.06/5,315.25
  6. Step 6: Final answer
    x = 12,082.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.