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Finding the Fourth Proportional to 19,850.92, 29,782.88 and 7,372.04

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Solution

The fourth proportional to 19,850.92, 29,782.88 and 7,372.04 is: 11,060.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,850.92 : 29,782.88 = 7,372.04 : x
  2. Step 2: Convert to fraction form
    19,850.92/29,782.88 = 7,372.04/x
  3. Step 3: Cross multiply
    19,850.92x = 29,782.88 × 7,372.04
  4. Step 4: Simplify right side
    19,850.92x = 219,560,582.68
  5. Step 5: Solve for x
    x = 219,560,582.68/19,850.92
  6. Step 6: Final answer
    x = 11,060.47

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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.