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Finding the Fourth Proportional to 11,354.70, 15,669.86 and 7,104.41

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Solution

The fourth proportional to 11,354.70, 15,669.86 and 7,104.41 is: 9,804.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,354.70 : 15,669.86 = 7,104.41 : x
  2. Step 2: Convert to fraction form
    11,354.70/15,669.86 = 7,104.41/x
  3. Step 3: Cross multiply
    11,354.70x = 15,669.86 × 7,104.41
  4. Step 4: Simplify right side
    11,354.70x = 111,324,996.21
  5. Step 5: Solve for x
    x = 111,324,996.21/11,354.70
  6. Step 6: Final answer
    x = 9,804.31

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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.