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Finding the Fourth Proportional to 14,395.53, 21,604.82 and 7,472.01

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Solution

The fourth proportional to 14,395.53, 21,604.82 and 7,472.01 is: 11,213.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,395.53 : 21,604.82 = 7,472.01 : x
  2. Step 2: Convert to fraction form
    14,395.53/21,604.82 = 7,472.01/x
  3. Step 3: Cross multiply
    14,395.53x = 21,604.82 × 7,472.01
  4. Step 4: Simplify right side
    14,395.53x = 161,431,393.73
  5. Step 5: Solve for x
    x = 161,431,393.73/14,395.53
  6. Step 6: Final answer
    x = 11,213.99

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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.