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Finding the Fourth Proportional to 9,913.41, 14,872.21 and 3,673.48

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Solution

The fourth proportional to 9,913.41, 14,872.21 and 3,673.48 is: 5,510.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,913.41 : 14,872.21 = 3,673.48 : x
  2. Step 2: Convert to fraction form
    9,913.41/14,872.21 = 3,673.48/x
  3. Step 3: Cross multiply
    9,913.41x = 14,872.21 × 3,673.48
  4. Step 4: Simplify right side
    9,913.41x = 54,632,705.68
  5. Step 5: Solve for x
    x = 54,632,705.68/9,913.41
  6. Step 6: Final answer
    x = 5,510.99

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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.