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Finding the Fourth Proportional to 29,387.80, 44,089.15 and 13,604.21

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Solution

The fourth proportional to 29,387.80, 44,089.15 and 13,604.21 is: 20,409.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,387.80 : 44,089.15 = 13,604.21 : x
  2. Step 2: Convert to fraction form
    29,387.80/44,089.15 = 13,604.21/x
  3. Step 3: Cross multiply
    29,387.80x = 44,089.15 × 13,604.21
  4. Step 4: Simplify right side
    29,387.80x = 599,797,834.88
  5. Step 5: Solve for x
    x = 599,797,834.88/29,387.80
  6. Step 6: Final answer
    x = 20,409.76

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1.5x scale

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.