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Finding the Fourth Proportional to 11,988.58, 17,983.04 and 4,593.42

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Solution

The fourth proportional to 11,988.58, 17,983.04 and 4,593.42 is: 6,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.58 : 17,983.04 = 4,593.42 : x
  2. Step 2: Convert to fraction form
    11,988.58/17,983.04 = 4,593.42/x
  3. Step 3: Cross multiply
    11,988.58x = 17,983.04 × 4,593.42
  4. Step 4: Simplify right side
    11,988.58x = 82,603,655.60
  5. Step 5: Solve for x
    x = 82,603,655.60/11,988.58
  6. Step 6: Final answer
    x = 6,890.20

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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.