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Finding the Fourth Proportional to 11,918.84, 17,872.44 and 3,597.29

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Solution

The fourth proportional to 11,918.84, 17,872.44 and 3,597.29 is: 5,394.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.84 : 17,872.44 = 3,597.29 : x
  2. Step 2: Convert to fraction form
    11,918.84/17,872.44 = 3,597.29/x
  3. Step 3: Cross multiply
    11,918.84x = 17,872.44 × 3,597.29
  4. Step 4: Simplify right side
    11,918.84x = 64,292,349.69
  5. Step 5: Solve for x
    x = 64,292,349.69/11,918.84
  6. Step 6: Final answer
    x = 5,394.18

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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.