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Finding the Fourth Proportional to 31,886.76, 47,835.37 and 9,694.99

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Solution

The fourth proportional to 31,886.76, 47,835.37 and 9,694.99 is: 14,544.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,886.76 : 47,835.37 = 9,694.99 : x
  2. Step 2: Convert to fraction form
    31,886.76/47,835.37 = 9,694.99/x
  3. Step 3: Cross multiply
    31,886.76x = 47,835.37 × 9,694.99
  4. Step 4: Simplify right side
    31,886.76x = 463,763,194.62
  5. Step 5: Solve for x
    x = 463,763,194.62/31,886.76
  6. Step 6: Final answer
    x = 14,544.07

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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.