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Finding the Fourth Proportional to 18,407.96, 27,611.12 and 5,927.76

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Solution

The fourth proportional to 18,407.96, 27,611.12 and 5,927.76 is: 8,891.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.96 : 27,611.12 = 5,927.76 : x
  2. Step 2: Convert to fraction form
    18,407.96/27,611.12 = 5,927.76/x
  3. Step 3: Cross multiply
    18,407.96x = 27,611.12 × 5,927.76
  4. Step 4: Simplify right side
    18,407.96x = 163,672,092.69
  5. Step 5: Solve for x
    x = 163,672,092.69/18,407.96
  6. Step 6: Final answer
    x = 8,891.38

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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.