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Finding the Fourth Proportional to 47,857.38, 71,786.07 and 12,796.13

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Solution

The fourth proportional to 47,857.38, 71,786.07 and 12,796.13 is: 19,194.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,857.38 : 71,786.07 = 12,796.13 : x
  2. Step 2: Convert to fraction form
    47,857.38/71,786.07 = 12,796.13/x
  3. Step 3: Cross multiply
    47,857.38x = 71,786.07 × 12,796.13
  4. Step 4: Simplify right side
    47,857.38x = 918,583,524.98
  5. Step 5: Solve for x
    x = 918,583,524.98/47,857.38
  6. Step 6: Final answer
    x = 19,194.19

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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.