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Finding the Fourth Proportional to 14,791.60, 22,179.90 and 4,927.42

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Solution

The fourth proportional to 14,791.60, 22,179.90 and 4,927.42 is: 7,388.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,791.60 : 22,179.90 = 4,927.42 : x
  2. Step 2: Convert to fraction form
    14,791.60/22,179.90 = 4,927.42/x
  3. Step 3: Cross multiply
    14,791.60x = 22,179.90 × 4,927.42
  4. Step 4: Simplify right side
    14,791.60x = 109,289,682.86
  5. Step 5: Solve for x
    x = 109,289,682.86/14,791.60
  6. Step 6: Final answer
    x = 7,388.63

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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.