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Finding the Fourth Proportional to 17,722.70, 26,584.05 and 16,629.20

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Solution

The fourth proportional to 17,722.70, 26,584.05 and 16,629.20 is: 24,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,722.70 : 26,584.05 = 16,629.20 : x
  2. Step 2: Convert to fraction form
    17,722.70/26,584.05 = 16,629.20/x
  3. Step 3: Cross multiply
    17,722.70x = 26,584.05 × 16,629.20
  4. Step 4: Simplify right side
    17,722.70x = 442,071,484.26
  5. Step 5: Solve for x
    x = 442,071,484.26/17,722.70
  6. Step 6: Final answer
    x = 24,943.80

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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.