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Finding the Fourth Proportional to 14,645.24, 20,203.44 and 14,079.44

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Solution

The fourth proportional to 14,645.24, 20,203.44 and 14,079.44 is: 19,422.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,645.24 : 20,203.44 = 14,079.44 : x
  2. Step 2: Convert to fraction form
    14,645.24/20,203.44 = 14,079.44/x
  3. Step 3: Cross multiply
    14,645.24x = 20,203.44 × 14,079.44
  4. Step 4: Simplify right side
    14,645.24x = 284,453,121.27
  5. Step 5: Solve for x
    x = 284,453,121.27/14,645.24
  6. Step 6: Final answer
    x = 19,422.91

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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.