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Finding the Fourth Proportional to 20,017.12, 27,626.16 and 11,632

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Solution

The fourth proportional to 20,017.12, 27,626.16 and 11,632 is: 16,053.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,017.12 : 27,626.16 = 11,632 : x
  2. Step 2: Convert to fraction form
    20,017.12/27,626.16 = 11,632/x
  3. Step 3: Cross multiply
    20,017.12x = 27,626.16 × 11,632
  4. Step 4: Simplify right side
    20,017.12x = 321,347,493.12
  5. Step 5: Solve for x
    x = 321,347,493.12/20,017.12
  6. Step 6: Final answer
    x = 16,053.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.