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Finding the Fourth Proportional to 14,993.67, 20,691.93 and 8,622.33

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Solution

The fourth proportional to 14,993.67, 20,691.93 and 8,622.33 is: 11,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,993.67 : 20,691.93 = 8,622.33 : x
  2. Step 2: Convert to fraction form
    14,993.67/20,691.93 = 8,622.33/x
  3. Step 3: Cross multiply
    14,993.67x = 20,691.93 × 8,622.33
  4. Step 4: Simplify right side
    14,993.67x = 178,412,648.80
  5. Step 5: Solve for x
    x = 178,412,648.80/14,993.67
  6. Step 6: Final answer
    x = 11,899.20

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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.