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Finding the Fourth Proportional to 19,381.39, 29,034.01 and 11,035.96

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Solution

The fourth proportional to 19,381.39, 29,034.01 and 11,035.96 is: 16,532.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,381.39 : 29,034.01 = 11,035.96 : x
  2. Step 2: Convert to fraction form
    19,381.39/29,034.01 = 11,035.96/x
  3. Step 3: Cross multiply
    19,381.39x = 29,034.01 × 11,035.96
  4. Step 4: Simplify right side
    19,381.39x = 320,418,173.00
  5. Step 5: Solve for x
    x = 320,418,173.00/19,381.39
  6. Step 6: Final answer
    x = 16,532.26

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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.