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Finding the Fourth Proportional to 11,840.55, 17,754.29 and 7,448.61

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Solution

The fourth proportional to 11,840.55, 17,754.29 and 7,448.61 is: 11,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.55 : 17,754.29 = 7,448.61 : x
  2. Step 2: Convert to fraction form
    11,840.55/17,754.29 = 7,448.61/x
  3. Step 3: Cross multiply
    11,840.55x = 17,754.29 × 7,448.61
  4. Step 4: Simplify right side
    11,840.55x = 132,244,744.79
  5. Step 5: Solve for x
    x = 132,244,744.79/11,840.55
  6. Step 6: Final answer
    x = 11,168.80

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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.