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Finding the Fourth Proportional to 11,835.74, 17,753.74 and 3,515.55

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Solution

The fourth proportional to 11,835.74, 17,753.74 and 3,515.55 is: 5,273.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,835.74 : 17,753.74 = 3,515.55 : x
  2. Step 2: Convert to fraction form
    11,835.74/17,753.74 = 3,515.55/x
  3. Step 3: Cross multiply
    11,835.74x = 17,753.74 × 3,515.55
  4. Step 4: Simplify right side
    11,835.74x = 62,414,160.66
  5. Step 5: Solve for x
    x = 62,414,160.66/11,835.74
  6. Step 6: Final answer
    x = 5,273.36

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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.