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Finding the Fourth Proportional to 63,651.44, 87,798.56 and 39,111.50

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Solution

The fourth proportional to 63,651.44, 87,798.56 and 39,111.50 is: 53,949.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,651.44 : 87,798.56 = 39,111.50 : x
  2. Step 2: Convert to fraction form
    63,651.44/87,798.56 = 39,111.50/x
  3. Step 3: Cross multiply
    63,651.44x = 87,798.56 × 39,111.50
  4. Step 4: Simplify right side
    63,651.44x = 3,433,933,379.44
  5. Step 5: Solve for x
    x = 3,433,933,379.44/63,651.44
  6. Step 6: Final answer
    x = 53,949.03

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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.