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Finding the Fourth Proportional to 66,255.61, 91,412.11 and 37,573.02

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Solution

The fourth proportional to 66,255.61, 91,412.11 and 37,573.02 is: 51,839.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,255.61 : 91,412.11 = 37,573.02 : x
  2. Step 2: Convert to fraction form
    66,255.61/91,412.11 = 37,573.02/x
  3. Step 3: Cross multiply
    66,255.61x = 91,412.11 × 37,573.02
  4. Step 4: Simplify right side
    66,255.61x = 3,434,629,504.14
  5. Step 5: Solve for x
    x = 3,434,629,504.14/66,255.61
  6. Step 6: Final answer
    x = 51,839.07

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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.