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Finding the Fourth Proportional to 11,906.25, 17,859.80 and 4,511.25

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Solution

The fourth proportional to 11,906.25, 17,859.80 and 4,511.25 is: 6,767.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,906.25 : 17,859.80 = 4,511.25 : x
  2. Step 2: Convert to fraction form
    11,906.25/17,859.80 = 4,511.25/x
  3. Step 3: Cross multiply
    11,906.25x = 17,859.80 × 4,511.25
  4. Step 4: Simplify right side
    11,906.25x = 80,570,034.03
  5. Step 5: Solve for x
    x = 80,570,034.03/11,906.25
  6. Step 6: Final answer
    x = 6,767.04

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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.