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Finding the Fourth Proportional to 68,843.37, 95,005.30 and 38,630.88

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Solution

The fourth proportional to 68,843.37, 95,005.30 and 38,630.88 is: 53,311.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,843.37 : 95,005.30 = 38,630.88 : x
  2. Step 2: Convert to fraction form
    68,843.37/95,005.30 = 38,630.88/x
  3. Step 3: Cross multiply
    68,843.37x = 95,005.30 × 38,630.88
  4. Step 4: Simplify right side
    68,843.37x = 3,670,138,343.66
  5. Step 5: Solve for x
    x = 3,670,138,343.66/68,843.37
  6. Step 6: Final answer
    x = 53,311.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.