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Finding the Fourth Proportional to 27,783.90, 41,679.95 and 8,059.89

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Solution

The fourth proportional to 27,783.90, 41,679.95 and 8,059.89 is: 12,091.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,783.90 : 41,679.95 = 8,059.89 : x
  2. Step 2: Convert to fraction form
    27,783.90/41,679.95 = 8,059.89/x
  3. Step 3: Cross multiply
    27,783.90x = 41,679.95 × 8,059.89
  4. Step 4: Simplify right side
    27,783.90x = 335,935,812.21
  5. Step 5: Solve for x
    x = 335,935,812.21/27,783.90
  6. Step 6: Final answer
    x = 12,091.02

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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.