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Finding the Fourth Proportional to 18,080.70, 27,089.16 and 15,834.47

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Solution

The fourth proportional to 18,080.70, 27,089.16 and 15,834.47 is: 23,723.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,080.70 : 27,089.16 = 15,834.47 : x
  2. Step 2: Convert to fraction form
    18,080.70/27,089.16 = 15,834.47/x
  3. Step 3: Cross multiply
    18,080.70x = 27,089.16 × 15,834.47
  4. Step 4: Simplify right side
    18,080.70x = 428,942,355.90
  5. Step 5: Solve for x
    x = 428,942,355.90/18,080.70
  6. Step 6: Final answer
    x = 23,723.77

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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.