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Finding the Fourth Proportional to 17,957.73, 26,938.15 and 5,480.56

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Solution

The fourth proportional to 17,957.73, 26,938.15 and 5,480.56 is: 8,221.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,957.73 : 26,938.15 = 5,480.56 : x
  2. Step 2: Convert to fraction form
    17,957.73/26,938.15 = 5,480.56/x
  3. Step 3: Cross multiply
    17,957.73x = 26,938.15 × 5,480.56
  4. Step 4: Simplify right side
    17,957.73x = 147,636,133.66
  5. Step 5: Solve for x
    x = 147,636,133.66/17,957.73
  6. Step 6: Final answer
    x = 8,221.32

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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.