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Finding the Fourth Proportional to 14,591.88, 21,887.90 and 4,203.88

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Solution

The fourth proportional to 14,591.88, 21,887.90 and 4,203.88 is: 6,305.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,591.88 : 21,887.90 = 4,203.88 : x
  2. Step 2: Convert to fraction form
    14,591.88/21,887.90 = 4,203.88/x
  3. Step 3: Cross multiply
    14,591.88x = 21,887.90 × 4,203.88
  4. Step 4: Simplify right side
    14,591.88x = 92,014,105.05
  5. Step 5: Solve for x
    x = 92,014,105.05/14,591.88
  6. Step 6: Final answer
    x = 6,305.84

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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.