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Finding the Fourth Proportional to 14,243.16, 21,375.54 and 5,927.88

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Solution

The fourth proportional to 14,243.16, 21,375.54 and 5,927.88 is: 8,896.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,243.16 : 21,375.54 = 5,927.88 : x
  2. Step 2: Convert to fraction form
    14,243.16/21,375.54 = 5,927.88/x
  3. Step 3: Cross multiply
    14,243.16x = 21,375.54 × 5,927.88
  4. Step 4: Simplify right side
    14,243.16x = 126,711,636.06
  5. Step 5: Solve for x
    x = 126,711,636.06/14,243.16
  6. Step 6: Final answer
    x = 8,896.31

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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.