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Finding the Fourth Proportional to 14,591.88, 21,891.42 and 4,203.54

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Solution

The fourth proportional to 14,591.88, 21,891.42 and 4,203.54 is: 6,306.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,591.88 : 21,891.42 = 4,203.54 : x
  2. Step 2: Convert to fraction form
    14,591.88/21,891.42 = 4,203.54/x
  3. Step 3: Cross multiply
    14,591.88x = 21,891.42 × 4,203.54
  4. Step 4: Simplify right side
    14,591.88x = 92,021,459.63
  5. Step 5: Solve for x
    x = 92,021,459.63/14,591.88
  6. Step 6: Final answer
    x = 6,306.35

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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.