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Finding the Fourth Proportional to 18,463.88, 27,570.52 and 14,672.99

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Solution

The fourth proportional to 18,463.88, 27,570.52 and 14,672.99 is: 21,909.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,463.88 : 27,570.52 = 14,672.99 : x
  2. Step 2: Convert to fraction form
    18,463.88/27,570.52 = 14,672.99/x
  3. Step 3: Cross multiply
    18,463.88x = 27,570.52 × 14,672.99
  4. Step 4: Simplify right side
    18,463.88x = 404,541,964.25
  5. Step 5: Solve for x
    x = 404,541,964.25/18,463.88
  6. Step 6: Final answer
    x = 21,909.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.