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Finding the Fourth Proportional to 8,611.13, 11,883.49 and 4,835.12

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Solution

The fourth proportional to 8,611.13, 11,883.49 and 4,835.12 is: 6,672.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,611.13 : 11,883.49 = 4,835.12 : x
  2. Step 2: Convert to fraction form
    8,611.13/11,883.49 = 4,835.12/x
  3. Step 3: Cross multiply
    8,611.13x = 11,883.49 × 4,835.12
  4. Step 4: Simplify right side
    8,611.13x = 57,458,028.66
  5. Step 5: Solve for x
    x = 57,458,028.66/8,611.13
  6. Step 6: Final answer
    x = 6,672.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.