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Finding the Fourth Proportional to 29,998.80, 44,986.05 and 10,267.20

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Solution

The fourth proportional to 29,998.80, 44,986.05 and 10,267.20 is: 15,396.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,998.80 : 44,986.05 = 10,267.20 : x
  2. Step 2: Convert to fraction form
    29,998.80/44,986.05 = 10,267.20/x
  3. Step 3: Cross multiply
    29,998.80x = 44,986.05 × 10,267.20
  4. Step 4: Simplify right side
    29,998.80x = 461,880,772.56
  5. Step 5: Solve for x
    x = 461,880,772.56/29,998.80
  6. Step 6: Final answer
    x = 15,396.64

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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.