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Finding the Fourth Proportional to 14,348.44, 19,799.94 and 8,381.80

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Solution

The fourth proportional to 14,348.44, 19,799.94 and 8,381.80 is: 11,566.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,348.44 : 19,799.94 = 8,381.80 : x
  2. Step 2: Convert to fraction form
    14,348.44/19,799.94 = 8,381.80/x
  3. Step 3: Cross multiply
    14,348.44x = 19,799.94 × 8,381.80
  4. Step 4: Simplify right side
    14,348.44x = 165,959,137.09
  5. Step 5: Solve for x
    x = 165,959,137.09/14,348.44
  6. Step 6: Final answer
    x = 11,566.35

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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.