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Finding the Fourth Proportional to 14,393.56, 19,863.24 and 8,726.44

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Solution

The fourth proportional to 14,393.56, 19,863.24 and 8,726.44 is: 12,042.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,393.56 : 19,863.24 = 8,726.44 : x
  2. Step 2: Convert to fraction form
    14,393.56/19,863.24 = 8,726.44/x
  3. Step 3: Cross multiply
    14,393.56x = 19,863.24 × 8,726.44
  4. Step 4: Simplify right side
    14,393.56x = 173,335,372.07
  5. Step 5: Solve for x
    x = 173,335,372.07/14,393.56
  6. Step 6: Final answer
    x = 12,042.56

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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.