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Finding the Third Proportional to 3,999.38 and 6,225.56

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Solution

The third proportional to 3,999.38 and 6,225.56 is: 9,690.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.38 : 6,225.56 = 6,225.56 : x
  2. Step 2: Convert to fraction form
    3,999.38/6,225.56 = 6,225.56/x
  3. Step 3: Cross multiply
    3,999.38x = 6,225.56 × 6,225.56
  4. Step 4: Simplify right side
    3,999.38x = 38,757,628.44
  5. Step 5: Solve for x
    x = 38,757,628.44/3,999.38
  6. Step 6: Final answer
    x = 9,690.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.