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Finding the Fourth Proportional to 31,892.99, 47,822.91 and 9,400.72

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Solution

The fourth proportional to 31,892.99, 47,822.91 and 9,400.72 is: 14,096.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,892.99 : 47,822.91 = 9,400.72 : x
  2. Step 2: Convert to fraction form
    31,892.99/47,822.91 = 9,400.72/x
  3. Step 3: Cross multiply
    31,892.99x = 47,822.91 × 9,400.72
  4. Step 4: Simplify right side
    31,892.99x = 449,569,786.50
  5. Step 5: Solve for x
    x = 449,569,786.50/31,892.99
  6. Step 6: Final answer
    x = 14,096.19

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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.