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Finding the Fourth Proportional to 14,466.65, 19,963.71 and 8,179.02

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Solution

The fourth proportional to 14,466.65, 19,963.71 and 8,179.02 is: 11,286.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,466.65 : 19,963.71 = 8,179.02 : x
  2. Step 2: Convert to fraction form
    14,466.65/19,963.71 = 8,179.02/x
  3. Step 3: Cross multiply
    14,466.65x = 19,963.71 × 8,179.02
  4. Step 4: Simplify right side
    14,466.65x = 163,283,583.36
  5. Step 5: Solve for x
    x = 163,283,583.36/14,466.65
  6. Step 6: Final answer
    x = 11,286.90

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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.