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Finding the Fourth Proportional to 13,244.98, 18,272.84 and 8,531.98

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Solution

The fourth proportional to 13,244.98, 18,272.84 and 8,531.98 is: 11,770.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.98 : 18,272.84 = 8,531.98 : x
  2. Step 2: Convert to fraction form
    13,244.98/18,272.84 = 8,531.98/x
  3. Step 3: Cross multiply
    13,244.98x = 18,272.84 × 8,531.98
  4. Step 4: Simplify right side
    13,244.98x = 155,903,505.42
  5. Step 5: Solve for x
    x = 155,903,505.42/13,244.98
  6. Step 6: Final answer
    x = 11,770.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.