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Finding the Fourth Proportional to 66,239.24, 91,412.49 and 37,950.39

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Solution

The fourth proportional to 66,239.24, 91,412.49 and 37,950.39 is: 52,372.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,239.24 : 91,412.49 = 37,950.39 : x
  2. Step 2: Convert to fraction form
    66,239.24/91,412.49 = 37,950.39/x
  3. Step 3: Cross multiply
    66,239.24x = 91,412.49 × 37,950.39
  4. Step 4: Simplify right side
    66,239.24x = 3,469,139,646.37
  5. Step 5: Solve for x
    x = 3,469,139,646.37/66,239.24
  6. Step 6: Final answer
    x = 52,372.88

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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.