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Finding the Fourth Proportional to 37,838.70, 56,648.70 and 36,745.20

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Solution

The fourth proportional to 37,838.70, 56,648.70 and 36,745.20 is: 55,011.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,838.70 : 56,648.70 = 36,745.20 : x
  2. Step 2: Convert to fraction form
    37,838.70/56,648.70 = 36,745.20/x
  3. Step 3: Cross multiply
    37,838.70x = 56,648.70 × 36,745.20
  4. Step 4: Simplify right side
    37,838.70x = 2,081,567,811.24
  5. Step 5: Solve for x
    x = 2,081,567,811.24/37,838.70
  6. Step 6: Final answer
    x = 55,011.61

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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.