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Finding the Fourth Proportional to 27,373.78, 41,060.70 and 8,905.78

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Solution

The fourth proportional to 27,373.78, 41,060.70 and 8,905.78 is: 13,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,373.78 : 41,060.70 = 8,905.78 : x
  2. Step 2: Convert to fraction form
    27,373.78/41,060.70 = 8,905.78/x
  3. Step 3: Cross multiply
    27,373.78x = 41,060.70 × 8,905.78
  4. Step 4: Simplify right side
    27,373.78x = 365,677,560.85
  5. Step 5: Solve for x
    x = 365,677,560.85/27,373.78
  6. Step 6: Final answer
    x = 13,358.68

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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.