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Finding the Fourth Proportional to 19,611.27, 27,060.03 and 11,655.45

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Solution

The fourth proportional to 19,611.27, 27,060.03 and 11,655.45 is: 16,082.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,611.27 : 27,060.03 = 11,655.45 : x
  2. Step 2: Convert to fraction form
    19,611.27/27,060.03 = 11,655.45/x
  3. Step 3: Cross multiply
    19,611.27x = 27,060.03 × 11,655.45
  4. Step 4: Simplify right side
    19,611.27x = 315,396,826.66
  5. Step 5: Solve for x
    x = 315,396,826.66/19,611.27
  6. Step 6: Final answer
    x = 16,082.43

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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.