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Finding the Fourth Proportional to 13,714.59, 20,571.89 and 3,326.25

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Solution

The fourth proportional to 13,714.59, 20,571.89 and 3,326.25 is: 4,989.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,714.59 : 20,571.89 = 3,326.25 : x
  2. Step 2: Convert to fraction form
    13,714.59/20,571.89 = 3,326.25/x
  3. Step 3: Cross multiply
    13,714.59x = 20,571.89 × 3,326.25
  4. Step 4: Simplify right side
    13,714.59x = 68,427,232.48
  5. Step 5: Solve for x
    x = 68,427,232.48/13,714.59
  6. Step 6: Final answer
    x = 4,989.38

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Similar ratio
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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.