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Finding the Fourth Proportional to 37,206.70, 55,795.20 and 12,239.80

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Solution

The fourth proportional to 37,206.70, 55,795.20 and 12,239.80 is: 18,354.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,206.70 : 55,795.20 = 12,239.80 : x
  2. Step 2: Convert to fraction form
    37,206.70/55,795.20 = 12,239.80/x
  3. Step 3: Cross multiply
    37,206.70x = 55,795.20 × 12,239.80
  4. Step 4: Simplify right side
    37,206.70x = 682,922,088.96
  5. Step 5: Solve for x
    x = 682,922,088.96/37,206.70
  6. Step 6: Final answer
    x = 18,354.81

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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.