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Finding the Fourth Proportional to 63,541.86, 87,661.50 and 36,665.30

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Solution

The fourth proportional to 63,541.86, 87,661.50 and 36,665.30 is: 50,582.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,541.86 : 87,661.50 = 36,665.30 : x
  2. Step 2: Convert to fraction form
    63,541.86/87,661.50 = 36,665.30/x
  3. Step 3: Cross multiply
    63,541.86x = 87,661.50 × 36,665.30
  4. Step 4: Simplify right side
    63,541.86x = 3,214,135,195.95
  5. Step 5: Solve for x
    x = 3,214,135,195.95/63,541.86
  6. Step 6: Final answer
    x = 50,582.96

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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.