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Finding the Fourth Proportional to 63,763.72, 87,993.64 and 35,469.36

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Solution

The fourth proportional to 63,763.72, 87,993.64 and 35,469.36 is: 48,947.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,763.72 : 87,993.64 = 35,469.36 : x
  2. Step 2: Convert to fraction form
    63,763.72/87,993.64 = 35,469.36/x
  3. Step 3: Cross multiply
    63,763.72x = 87,993.64 × 35,469.36
  4. Step 4: Simplify right side
    63,763.72x = 3,121,078,094.87
  5. Step 5: Solve for x
    x = 3,121,078,094.87/63,763.72
  6. Step 6: Final answer
    x = 48,947.55

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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.