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Finding the Fourth Proportional to 66,422.22, 91,661.31 and 36,614.22

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Solution

The fourth proportional to 66,422.22, 91,661.31 and 36,614.22 is: 50,526.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,422.22 : 91,661.31 = 36,614.22 : x
  2. Step 2: Convert to fraction form
    66,422.22/91,661.31 = 36,614.22/x
  3. Step 3: Cross multiply
    66,422.22x = 91,661.31 × 36,614.22
  4. Step 4: Simplify right side
    66,422.22x = 3,356,107,369.83
  5. Step 5: Solve for x
    x = 3,356,107,369.83/66,422.22
  6. Step 6: Final answer
    x = 50,526.88

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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.