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Finding the Fourth Proportional to 64,463.01, 96,694.23 and 20,089.80

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Solution

The fourth proportional to 64,463.01, 96,694.23 and 20,089.80 is: 30,134.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,463.01 : 96,694.23 = 20,089.80 : x
  2. Step 2: Convert to fraction form
    64,463.01/96,694.23 = 20,089.80/x
  3. Step 3: Cross multiply
    64,463.01x = 96,694.23 × 20,089.80
  4. Step 4: Simplify right side
    64,463.01x = 1,942,567,741.85
  5. Step 5: Solve for x
    x = 1,942,567,741.85/64,463.01
  6. Step 6: Final answer
    x = 30,134.61

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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.