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Finding the Fourth Proportional to 18,814.26, 28,223.26 and 4,963.26

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Solution

The fourth proportional to 18,814.26, 28,223.26 and 4,963.26 is: 7,445.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814.26 : 28,223.26 = 4,963.26 : x
  2. Step 2: Convert to fraction form
    18,814.26/28,223.26 = 4,963.26/x
  3. Step 3: Cross multiply
    18,814.26x = 28,223.26 × 4,963.26
  4. Step 4: Simplify right side
    18,814.26x = 140,079,377.43
  5. Step 5: Solve for x
    x = 140,079,377.43/18,814.26
  6. Step 6: Final answer
    x = 7,445.38

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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.