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Finding the Fourth Proportional to 19,201.97, 28,783.17 and 7,352.94

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Solution

The fourth proportional to 19,201.97, 28,783.17 and 7,352.94 is: 11,021.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,201.97 : 28,783.17 = 7,352.94 : x
  2. Step 2: Convert to fraction form
    19,201.97/28,783.17 = 7,352.94/x
  3. Step 3: Cross multiply
    19,201.97x = 28,783.17 × 7,352.94
  4. Step 4: Simplify right side
    19,201.97x = 211,640,922.02
  5. Step 5: Solve for x
    x = 211,640,922.02/19,201.97
  6. Step 6: Final answer
    x = 11,021.84

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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.