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Finding the Fourth Proportional to 9,960.30, 14,940.99 and 3,721.95

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Solution

The fourth proportional to 9,960.30, 14,940.99 and 3,721.95 is: 5,583.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,960.30 : 14,940.99 = 3,721.95 : x
  2. Step 2: Convert to fraction form
    9,960.30/14,940.99 = 3,721.95/x
  3. Step 3: Cross multiply
    9,960.30x = 14,940.99 × 3,721.95
  4. Step 4: Simplify right side
    9,960.30x = 55,609,617.73
  5. Step 5: Solve for x
    x = 55,609,617.73/9,960.30
  6. Step 6: Final answer
    x = 5,583.13

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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.