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Finding the Fourth Proportional to 63,652.97, 87,768.62 and 40,651.80

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Solution

The fourth proportional to 63,652.97, 87,768.62 and 40,651.80 is: 56,053.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,652.97 : 87,768.62 = 40,651.80 : x
  2. Step 2: Convert to fraction form
    63,652.97/87,768.62 = 40,651.80/x
  3. Step 3: Cross multiply
    63,652.97x = 87,768.62 × 40,651.80
  4. Step 4: Simplify right side
    63,652.97x = 3,567,952,183.26
  5. Step 5: Solve for x
    x = 3,567,952,183.26/63,652.97
  6. Step 6: Final answer
    x = 56,053.20

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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.