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Finding the Fourth Proportional to 11,486.52, 17,232.64 and 3,278.52

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Solution

The fourth proportional to 11,486.52, 17,232.64 and 3,278.52 is: 4,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,486.52 : 17,232.64 = 3,278.52 : x
  2. Step 2: Convert to fraction form
    11,486.52/17,232.64 = 3,278.52/x
  3. Step 3: Cross multiply
    11,486.52x = 17,232.64 × 3,278.52
  4. Step 4: Simplify right side
    11,486.52x = 56,497,554.89
  5. Step 5: Solve for x
    x = 56,497,554.89/11,486.52
  6. Step 6: Final answer
    x = 4,918.60

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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.