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Finding the Fourth Proportional to 14,393.76, 21,584.95 and 6,996.03

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Solution

The fourth proportional to 14,393.76, 21,584.95 and 6,996.03 is: 10,491.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,393.76 : 21,584.95 = 6,996.03 : x
  2. Step 2: Convert to fraction form
    14,393.76/21,584.95 = 6,996.03/x
  3. Step 3: Cross multiply
    14,393.76x = 21,584.95 × 6,996.03
  4. Step 4: Simplify right side
    14,393.76x = 151,008,940.26
  5. Step 5: Solve for x
    x = 151,008,940.26/14,393.76
  6. Step 6: Final answer
    x = 10,491.28

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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.