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Finding the Fourth Proportional to 57,484.94, 86,202.80 and 20,033.93

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Solution

The fourth proportional to 57,484.94, 86,202.80 and 20,033.93 is: 30,042.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,484.94 : 86,202.80 = 20,033.93 : x
  2. Step 2: Convert to fraction form
    57,484.94/86,202.80 = 20,033.93/x
  3. Step 3: Cross multiply
    57,484.94x = 86,202.80 × 20,033.93
  4. Step 4: Simplify right side
    57,484.94x = 1,726,980,861.00
  5. Step 5: Solve for x
    x = 1,726,980,861.00/57,484.94
  6. Step 6: Final answer
    x = 30,042.32

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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.