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Finding the Fourth Proportional to 64,487.72, 88,993.05 and 36,193.41

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Solution

The fourth proportional to 64,487.72, 88,993.05 and 36,193.41 is: 49,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,487.72 : 88,993.05 = 36,193.41 : x
  2. Step 2: Convert to fraction form
    64,487.72/88,993.05 = 36,193.41/x
  3. Step 3: Cross multiply
    64,487.72x = 88,993.05 × 36,193.41
  4. Step 4: Simplify right side
    64,487.72x = 3,220,961,945.80
  5. Step 5: Solve for x
    x = 3,220,961,945.80/64,487.72
  6. Step 6: Final answer
    x = 49,946.90

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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.