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Finding the Fourth Proportional to 13,894.58, 20,843.70 and 4,531.31

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Solution

The fourth proportional to 13,894.58, 20,843.70 and 4,531.31 is: 6,797.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,894.58 : 20,843.70 = 4,531.31 : x
  2. Step 2: Convert to fraction form
    13,894.58/20,843.70 = 4,531.31/x
  3. Step 3: Cross multiply
    13,894.58x = 20,843.70 × 4,531.31
  4. Step 4: Simplify right side
    13,894.58x = 94,449,266.25
  5. Step 5: Solve for x
    x = 94,449,266.25/13,894.58
  6. Step 6: Final answer
    x = 6,797.56

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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.