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Finding the Fourth Proportional to 17,889.08, 26,784.18 and 13,493.21

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Solution

The fourth proportional to 17,889.08, 26,784.18 and 13,493.21 is: 20,202.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,889.08 : 26,784.18 = 13,493.21 : x
  2. Step 2: Convert to fraction form
    17,889.08/26,784.18 = 13,493.21/x
  3. Step 3: Cross multiply
    17,889.08x = 26,784.18 × 13,493.21
  4. Step 4: Simplify right side
    17,889.08x = 361,404,431.50
  5. Step 5: Solve for x
    x = 361,404,431.50/17,889.08
  6. Step 6: Final answer
    x = 20,202.52

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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.