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Finding the Fourth Proportional to 14,493.43, 21,730.79 and 4,629.43

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Solution

The fourth proportional to 14,493.43, 21,730.79 and 4,629.43 is: 6,941.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,493.43 : 21,730.79 = 4,629.43 : x
  2. Step 2: Convert to fraction form
    14,493.43/21,730.79 = 4,629.43/x
  3. Step 3: Cross multiply
    14,493.43x = 21,730.79 × 4,629.43
  4. Step 4: Simplify right side
    14,493.43x = 100,601,148.00
  5. Step 5: Solve for x
    x = 100,601,148.00/14,493.43
  6. Step 6: Final answer
    x = 6,941.16

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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.