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Finding the Third Proportional to 4,839.75 and 12,382.88

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Solution

The third proportional to 4,839.75 and 12,382.88 is: 31,682.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839.75 : 12,382.88 = 12,382.88 : x
  2. Step 2: Convert to fraction form
    4,839.75/12,382.88 = 12,382.88/x
  3. Step 3: Cross multiply
    4,839.75x = 12,382.88 × 12,382.88
  4. Step 4: Simplify right side
    4,839.75x = 153,335,593.27
  5. Step 5: Solve for x
    x = 153,335,593.27/4,839.75
  6. Step 6: Final answer
    x = 31,682.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.