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Finding the Fourth Proportional to 27,374.63, 41,064.57 and 12,587.67

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Solution

The fourth proportional to 27,374.63, 41,064.57 and 12,587.67 is: 18,882.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,374.63 : 41,064.57 = 12,587.67 : x
  2. Step 2: Convert to fraction form
    27,374.63/41,064.57 = 12,587.67/x
  3. Step 3: Cross multiply
    27,374.63x = 41,064.57 × 12,587.67
  4. Step 4: Simplify right side
    27,374.63x = 516,907,255.85
  5. Step 5: Solve for x
    x = 516,907,255.85/27,374.63
  6. Step 6: Final answer
    x = 18,882.72

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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.