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Finding the Fourth Proportional to 31,179.63, 46,769.41 and 7,806.07

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Solution

The fourth proportional to 31,179.63, 46,769.41 and 7,806.07 is: 11,709.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,179.63 : 46,769.41 = 7,806.07 : x
  2. Step 2: Convert to fraction form
    31,179.63/46,769.41 = 7,806.07/x
  3. Step 3: Cross multiply
    31,179.63x = 46,769.41 × 7,806.07
  4. Step 4: Simplify right side
    31,179.63x = 365,085,015.44
  5. Step 5: Solve for x
    x = 365,085,015.44/31,179.63
  6. Step 6: Final answer
    x = 11,709.09

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1.5x scale

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.