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Finding the Fourth Proportional to 19,492.70, 29,240.90 and 5,452.73

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Solution

The fourth proportional to 19,492.70, 29,240.90 and 5,452.73 is: 8,179.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,492.70 : 29,240.90 = 5,452.73 : x
  2. Step 2: Convert to fraction form
    19,492.70/29,240.90 = 5,452.73/x
  3. Step 3: Cross multiply
    19,492.70x = 29,240.90 × 5,452.73
  4. Step 4: Simplify right side
    19,492.70x = 159,442,559.19
  5. Step 5: Solve for x
    x = 159,442,559.19/19,492.70
  6. Step 6: Final answer
    x = 8,179.61

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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.