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Finding the Fourth Proportional to 19,231.88, 28,849.18 and 6,750.44

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Solution

The fourth proportional to 19,231.88, 28,849.18 and 6,750.44 is: 10,126.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,231.88 : 28,849.18 = 6,750.44 : x
  2. Step 2: Convert to fraction form
    19,231.88/28,849.18 = 6,750.44/x
  3. Step 3: Cross multiply
    19,231.88x = 28,849.18 × 6,750.44
  4. Step 4: Simplify right side
    19,231.88x = 194,744,658.64
  5. Step 5: Solve for x
    x = 194,744,658.64/19,231.88
  6. Step 6: Final answer
    x = 10,126.14

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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.