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Finding the Fourth Proportional to 63,640.44, 87,824.34 and 35,346.60

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Solution

The fourth proportional to 63,640.44, 87,824.34 and 35,346.60 is: 48,778.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,640.44 : 87,824.34 = 35,346.60 : x
  2. Step 2: Convert to fraction form
    63,640.44/87,824.34 = 35,346.60/x
  3. Step 3: Cross multiply
    63,640.44x = 87,824.34 × 35,346.60
  4. Step 4: Simplify right side
    63,640.44x = 3,104,291,816.24
  5. Step 5: Solve for x
    x = 3,104,291,816.24/63,640.44
  6. Step 6: Final answer
    x = 48,778.60

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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.