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Finding the Fourth Proportional to 10,321.01, 14,243.06 and 5,605.29

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Solution

The fourth proportional to 10,321.01, 14,243.06 and 5,605.29 is: 7,735.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,321.01 : 14,243.06 = 5,605.29 : x
  2. Step 2: Convert to fraction form
    10,321.01/14,243.06 = 5,605.29/x
  3. Step 3: Cross multiply
    10,321.01x = 14,243.06 × 5,605.29
  4. Step 4: Simplify right side
    10,321.01x = 79,836,453.76
  5. Step 5: Solve for x
    x = 79,836,453.76/10,321.01
  6. Step 6: Final answer
    x = 7,735.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.