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Finding the Fourth Proportional to 19,235.78, 28,850.78 and 6,086.44

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Solution

The fourth proportional to 19,235.78, 28,850.78 and 6,086.44 is: 9,128.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,235.78 : 28,850.78 = 6,086.44 : x
  2. Step 2: Convert to fraction form
    19,235.78/28,850.78 = 6,086.44/x
  3. Step 3: Cross multiply
    19,235.78x = 28,850.78 × 6,086.44
  4. Step 4: Simplify right side
    19,235.78x = 175,598,438.86
  5. Step 5: Solve for x
    x = 175,598,438.86/19,235.78
  6. Step 6: Final answer
    x = 9,128.74

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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.