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Finding the Fourth Proportional to 17,474.40, 26,276.40 and 14,623.20

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Solution

The fourth proportional to 17,474.40, 26,276.40 and 14,623.20 is: 21,989.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,474.40 : 26,276.40 = 14,623.20 : x
  2. Step 2: Convert to fraction form
    17,474.40/26,276.40 = 14,623.20/x
  3. Step 3: Cross multiply
    17,474.40x = 26,276.40 × 14,623.20
  4. Step 4: Simplify right side
    17,474.40x = 384,245,052.48
  5. Step 5: Solve for x
    x = 384,245,052.48/17,474.40
  6. Step 6: Final answer
    x = 21,989.03

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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.