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Finding the Fourth Proportional to 11,840.65, 17,757.43 and 9,755.48

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Solution

The fourth proportional to 11,840.65, 17,757.43 and 9,755.48 is: 14,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.65 : 17,757.43 = 9,755.48 : x
  2. Step 2: Convert to fraction form
    11,840.65/17,757.43 = 9,755.48/x
  3. Step 3: Cross multiply
    11,840.65x = 17,757.43 × 9,755.48
  4. Step 4: Simplify right side
    11,840.65x = 173,232,273.22
  5. Step 5: Solve for x
    x = 173,232,273.22/11,840.65
  6. Step 6: Final answer
    x = 14,630.30

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1.5x scale

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.