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Finding the Fourth Proportional to 66,786.16, 92,164.89 and 36,571.48

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Solution

The fourth proportional to 66,786.16, 92,164.89 and 36,571.48 is: 50,468.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,786.16 : 92,164.89 = 36,571.48 : x
  2. Step 2: Convert to fraction form
    66,786.16/92,164.89 = 36,571.48/x
  3. Step 3: Cross multiply
    66,786.16x = 92,164.89 × 36,571.48
  4. Step 4: Simplify right side
    66,786.16x = 3,370,606,431.34
  5. Step 5: Solve for x
    x = 3,370,606,431.34/66,786.16
  6. Step 6: Final answer
    x = 50,468.64

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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.