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Finding the Fourth Proportional to 69,394.80, 104,121.90 and 22,013.76

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Solution

The fourth proportional to 69,394.80, 104,121.90 and 22,013.76 is: 33,030.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,394.80 : 104,121.90 = 22,013.76 : x
  2. Step 2: Convert to fraction form
    69,394.80/104,121.90 = 22,013.76/x
  3. Step 3: Cross multiply
    69,394.80x = 104,121.90 × 22,013.76
  4. Step 4: Simplify right side
    69,394.80x = 2,292,114,517.34
  5. Step 5: Solve for x
    x = 2,292,114,517.34/69,394.80
  6. Step 6: Final answer
    x = 33,030.06

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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.