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Finding the Fourth Proportional to 17,855.61, 26,787.32 and 6,762.37

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Solution

The fourth proportional to 17,855.61, 26,787.32 and 6,762.37 is: 10,145.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,855.61 : 26,787.32 = 6,762.37 : x
  2. Step 2: Convert to fraction form
    17,855.61/26,787.32 = 6,762.37/x
  3. Step 3: Cross multiply
    17,855.61x = 26,787.32 × 6,762.37
  4. Step 4: Simplify right side
    17,855.61x = 181,145,769.15
  5. Step 5: Solve for x
    x = 181,145,769.15/17,855.61
  6. Step 6: Final answer
    x = 10,145.03

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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.