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Finding the Fourth Proportional to 68,764.58, 94,900.58 and 40,475.73

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Solution

The fourth proportional to 68,764.58, 94,900.58 and 40,475.73 is: 55,859.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,764.58 : 94,900.58 = 40,475.73 : x
  2. Step 2: Convert to fraction form
    68,764.58/94,900.58 = 40,475.73/x
  3. Step 3: Cross multiply
    68,764.58x = 94,900.58 × 40,475.73
  4. Step 4: Simplify right side
    68,764.58x = 3,841,170,558.21
  5. Step 5: Solve for x
    x = 3,841,170,558.21/68,764.58
  6. Step 6: Final answer
    x = 55,859.73

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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.