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Finding the Fourth Proportional to 14,676.98, 21,998.39 and 7,286.13

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Solution

The fourth proportional to 14,676.98, 21,998.39 and 7,286.13 is: 10,920.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,676.98 : 21,998.39 = 7,286.13 : x
  2. Step 2: Convert to fraction form
    14,676.98/21,998.39 = 7,286.13/x
  3. Step 3: Cross multiply
    14,676.98x = 21,998.39 × 7,286.13
  4. Step 4: Simplify right side
    14,676.98x = 160,283,092.90
  5. Step 5: Solve for x
    x = 160,283,092.90/14,676.98
  6. Step 6: Final answer
    x = 10,920.72

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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.