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Finding the Fourth Proportional to 63,756.36, 87,947.82 and 38,255.94

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Solution

The fourth proportional to 63,756.36, 87,947.82 and 38,255.94 is: 52,771.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,756.36 : 87,947.82 = 38,255.94 : x
  2. Step 2: Convert to fraction form
    63,756.36/87,947.82 = 38,255.94/x
  3. Step 3: Cross multiply
    63,756.36x = 87,947.82 × 38,255.94
  4. Step 4: Simplify right side
    63,756.36x = 3,364,526,525.05
  5. Step 5: Solve for x
    x = 3,364,526,525.05/63,756.36
  6. Step 6: Final answer
    x = 52,771.62

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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.