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Finding the Fourth Proportional to 19,195.66, 28,793.50 and 7,500.68

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Solution

The fourth proportional to 19,195.66, 28,793.50 and 7,500.68 is: 11,251.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,195.66 : 28,793.50 = 7,500.68 : x
  2. Step 2: Convert to fraction form
    19,195.66/28,793.50 = 7,500.68/x
  3. Step 3: Cross multiply
    19,195.66x = 28,793.50 × 7,500.68
  4. Step 4: Simplify right side
    19,195.66x = 215,970,774.84
  5. Step 5: Solve for x
    x = 215,970,774.84/19,195.66
  6. Step 6: Final answer
    x = 11,251.02

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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.