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Finding the Fourth Proportional to 11,385.97, 17,078.99 and 3,594.78

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Solution

The fourth proportional to 11,385.97, 17,078.99 and 3,594.78 is: 5,392.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.97 : 17,078.99 = 3,594.78 : x
  2. Step 2: Convert to fraction form
    11,385.97/17,078.99 = 3,594.78/x
  3. Step 3: Cross multiply
    11,385.97x = 17,078.99 × 3,594.78
  4. Step 4: Simplify right side
    11,385.97x = 61,395,193.70
  5. Step 5: Solve for x
    x = 61,395,193.70/11,385.97
  6. Step 6: Final answer
    x = 5,392.18

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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.