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Finding the Fourth Proportional to 58,121.42, 80,186.94 and 37,989.92

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Solution

The fourth proportional to 58,121.42, 80,186.94 and 37,989.92 is: 52,412.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,121.42 : 80,186.94 = 37,989.92 : x
  2. Step 2: Convert to fraction form
    58,121.42/80,186.94 = 37,989.92/x
  3. Step 3: Cross multiply
    58,121.42x = 80,186.94 × 37,989.92
  4. Step 4: Simplify right side
    58,121.42x = 3,046,295,435.64
  5. Step 5: Solve for x
    x = 3,046,295,435.64/58,121.42
  6. Step 6: Final answer
    x = 52,412.61

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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.