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Finding the Fourth Proportional to 63,991.00, 96,000.49 and 19,621.20

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Solution

The fourth proportional to 63,991.00, 96,000.49 and 19,621.20 is: 29,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,991.00 : 96,000.49 = 19,621.20 : x
  2. Step 2: Convert to fraction form
    63,991.00/96,000.49 = 19,621.20/x
  3. Step 3: Cross multiply
    63,991.00x = 96,000.49 × 19,621.20
  4. Step 4: Simplify right side
    63,991.00x = 1,883,645,198.92
  5. Step 5: Solve for x
    x = 1,883,645,198.92/63,991.00
  6. Step 6: Final answer
    x = 29,436.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.