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Finding the Fourth Proportional to 13,682.89, 20,524.32 and 4,448.89

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Solution

The fourth proportional to 13,682.89, 20,524.32 and 4,448.89 is: 6,673.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,682.89 : 20,524.32 = 4,448.89 : x
  2. Step 2: Convert to fraction form
    13,682.89/20,524.32 = 4,448.89/x
  3. Step 3: Cross multiply
    13,682.89x = 20,524.32 × 4,448.89
  4. Step 4: Simplify right side
    13,682.89x = 91,310,442.00
  5. Step 5: Solve for x
    x = 91,310,442.00/13,682.89
  6. Step 6: Final answer
    x = 6,673.33

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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.