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Finding the Fourth Proportional to 18,595.55, 27,914.13 and 12,367.76

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Solution

The fourth proportional to 18,595.55, 27,914.13 and 12,367.76 is: 18,565.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,595.55 : 27,914.13 = 12,367.76 : x
  2. Step 2: Convert to fraction form
    18,595.55/27,914.13 = 12,367.76/x
  3. Step 3: Cross multiply
    18,595.55x = 27,914.13 × 12,367.76
  4. Step 4: Simplify right side
    18,595.55x = 345,235,373.80
  5. Step 5: Solve for x
    x = 345,235,373.80/18,595.55
  6. Step 6: Final answer
    x = 18,565.48

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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.