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Finding the Fourth Proportional to 17,493.78, 26,242.08 and 5,485.11

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Solution

The fourth proportional to 17,493.78, 26,242.08 and 5,485.11 is: 8,228.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,493.78 : 26,242.08 = 5,485.11 : x
  2. Step 2: Convert to fraction form
    17,493.78/26,242.08 = 5,485.11/x
  3. Step 3: Cross multiply
    17,493.78x = 26,242.08 × 5,485.11
  4. Step 4: Simplify right side
    17,493.78x = 143,940,695.43
  5. Step 5: Solve for x
    x = 143,940,695.43/17,493.78
  6. Step 6: Final answer
    x = 8,228.11

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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.