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Finding the Fourth Proportional to 17,855.66, 26,787.24 and 6,762.11

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Solution

The fourth proportional to 17,855.66, 26,787.24 and 6,762.11 is: 10,144.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,855.66 : 26,787.24 = 6,762.11 : x
  2. Step 2: Convert to fraction form
    17,855.66/26,787.24 = 6,762.11/x
  3. Step 3: Cross multiply
    17,855.66x = 26,787.24 × 6,762.11
  4. Step 4: Simplify right side
    17,855.66x = 181,138,129.54
  5. Step 5: Solve for x
    x = 181,138,129.54/17,855.66
  6. Step 6: Final answer
    x = 10,144.58

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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.