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Finding the Fourth Proportional to 45,496.78, 68,238.84 and 17,423.90

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Solution

The fourth proportional to 45,496.78, 68,238.84 and 17,423.90 is: 26,133.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,496.78 : 68,238.84 = 17,423.90 : x
  2. Step 2: Convert to fraction form
    45,496.78/68,238.84 = 17,423.90/x
  3. Step 3: Cross multiply
    45,496.78x = 68,238.84 × 17,423.90
  4. Step 4: Simplify right side
    45,496.78x = 1,188,986,583.85
  5. Step 5: Solve for x
    x = 1,188,986,583.85/45,496.78
  6. Step 6: Final answer
    x = 26,133.42

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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.