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Finding the Fourth Proportional to 18,908.31, 28,375.43 and 6,596.31

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Solution

The fourth proportional to 18,908.31, 28,375.43 and 6,596.31 is: 9,898.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,908.31 : 28,375.43 = 6,596.31 : x
  2. Step 2: Convert to fraction form
    18,908.31/28,375.43 = 6,596.31/x
  3. Step 3: Cross multiply
    18,908.31x = 28,375.43 × 6,596.31
  4. Step 4: Simplify right side
    18,908.31x = 187,173,195.36
  5. Step 5: Solve for x
    x = 187,173,195.36/18,908.31
  6. Step 6: Final answer
    x = 9,898.99

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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.