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Finding the Fourth Proportional to 13,334.63, 20,008.42 and 8,943.41

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Solution

The fourth proportional to 13,334.63, 20,008.42 and 8,943.41 is: 13,419.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,334.63 : 20,008.42 = 8,943.41 : x
  2. Step 2: Convert to fraction form
    13,334.63/20,008.42 = 8,943.41/x
  3. Step 3: Cross multiply
    13,334.63x = 20,008.42 × 8,943.41
  4. Step 4: Simplify right side
    13,334.63x = 178,943,531.17
  5. Step 5: Solve for x
    x = 178,943,531.17/13,334.63
  6. Step 6: Final answer
    x = 13,419.46

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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.