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Finding the Fourth Proportional to 37,908.12, 56,861.94 and 12,936.12

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Solution

The fourth proportional to 37,908.12, 56,861.94 and 12,936.12 is: 19,404.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,908.12 : 56,861.94 = 12,936.12 : x
  2. Step 2: Convert to fraction form
    37,908.12/56,861.94 = 12,936.12/x
  3. Step 3: Cross multiply
    37,908.12x = 56,861.94 × 12,936.12
  4. Step 4: Simplify right side
    37,908.12x = 735,572,879.27
  5. Step 5: Solve for x
    x = 735,572,879.27/37,908.12
  6. Step 6: Final answer
    x = 19,404.10

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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.