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Finding the Fourth Proportional to 18,496.50, 25,531.65 and 11,044.50

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Solution

The fourth proportional to 18,496.50, 25,531.65 and 11,044.50 is: 15,245.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,496.50 : 25,531.65 = 11,044.50 : x
  2. Step 2: Convert to fraction form
    18,496.50/25,531.65 = 11,044.50/x
  3. Step 3: Cross multiply
    18,496.50x = 25,531.65 × 11,044.50
  4. Step 4: Simplify right side
    18,496.50x = 281,984,308.43
  5. Step 5: Solve for x
    x = 281,984,308.43/18,496.50
  6. Step 6: Final answer
    x = 15,245.28

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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.