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Finding the Fourth Proportional to 65,793.57, 90,791.65 and 37,112.41

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Solution

The fourth proportional to 65,793.57, 90,791.65 and 37,112.41 is: 51,213.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,793.57 : 90,791.65 = 37,112.41 : x
  2. Step 2: Convert to fraction form
    65,793.57/90,791.65 = 37,112.41/x
  3. Step 3: Cross multiply
    65,793.57x = 90,791.65 × 37,112.41
  4. Step 4: Simplify right side
    65,793.57x = 3,369,496,939.38
  5. Step 5: Solve for x
    x = 3,369,496,939.38/65,793.57
  6. Step 6: Final answer
    x = 51,213.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.