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Finding the Fourth Proportional to 57,764.66, 86,449.84 and 48,415.24

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Solution

The fourth proportional to 57,764.66, 86,449.84 and 48,415.24 is: 72,457.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,764.66 : 86,449.84 = 48,415.24 : x
  2. Step 2: Convert to fraction form
    57,764.66/86,449.84 = 48,415.24/x
  3. Step 3: Cross multiply
    57,764.66x = 86,449.84 × 48,415.24
  4. Step 4: Simplify right side
    57,764.66x = 4,185,489,751.56
  5. Step 5: Solve for x
    x = 4,185,489,751.56/57,764.66
  6. Step 6: Final answer
    x = 72,457.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.