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Finding the Fourth Proportional to 52,561.94, 78,800.34 and 35,879.96

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Solution

The fourth proportional to 52,561.94, 78,800.34 and 35,879.96 is: 53,790.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,561.94 : 78,800.34 = 35,879.96 : x
  2. Step 2: Convert to fraction form
    52,561.94/78,800.34 = 35,879.96/x
  3. Step 3: Cross multiply
    52,561.94x = 78,800.34 × 35,879.96
  4. Step 4: Simplify right side
    52,561.94x = 2,827,353,047.19
  5. Step 5: Solve for x
    x = 2,827,353,047.19/52,561.94
  6. Step 6: Final answer
    x = 53,790.88

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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.