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Finding the Fourth Proportional to 74,613.94, 111,882.90 and 36,665.74

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Solution

The fourth proportional to 74,613.94, 111,882.90 and 36,665.74 is: 54,979.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,613.94 : 111,882.90 = 36,665.74 : x
  2. Step 2: Convert to fraction form
    74,613.94/111,882.90 = 36,665.74/x
  3. Step 3: Cross multiply
    74,613.94x = 111,882.90 × 36,665.74
  4. Step 4: Simplify right side
    74,613.94x = 4,102,269,321.85
  5. Step 5: Solve for x
    x = 4,102,269,321.85/74,613.94
  6. Step 6: Final answer
    x = 54,979.93

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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.