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Finding the Fourth Proportional to 17,957.20, 26,918.82 and 6,267.28

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Solution

The fourth proportional to 17,957.20, 26,918.82 and 6,267.28 is: 9,394.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,957.20 : 26,918.82 = 6,267.28 : x
  2. Step 2: Convert to fraction form
    17,957.20/26,918.82 = 6,267.28/x
  3. Step 3: Cross multiply
    17,957.20x = 26,918.82 × 6,267.28
  4. Step 4: Simplify right side
    17,957.20x = 168,707,782.21
  5. Step 5: Solve for x
    x = 168,707,782.21/17,957.20
  6. Step 6: Final answer
    x = 9,394.99

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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.