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Finding the Fourth Proportional to 14,493.18, 21,730.41 and 4,629.18

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Solution

The fourth proportional to 14,493.18, 21,730.41 and 4,629.18 is: 6,940.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,493.18 : 21,730.41 = 4,629.18 : x
  2. Step 2: Convert to fraction form
    14,493.18/21,730.41 = 4,629.18/x
  3. Step 3: Cross multiply
    14,493.18x = 21,730.41 × 4,629.18
  4. Step 4: Simplify right side
    14,493.18x = 100,593,979.36
  5. Step 5: Solve for x
    x = 100,593,979.36/14,493.18
  6. Step 6: Final answer
    x = 6,940.78

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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.