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Finding the Fourth Proportional to 66,494.26, 91,765.59 and 38,201.77

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Solution

The fourth proportional to 66,494.26, 91,765.59 and 38,201.77 is: 52,720.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,494.26 : 91,765.59 = 38,201.77 : x
  2. Step 2: Convert to fraction form
    66,494.26/91,765.59 = 38,201.77/x
  3. Step 3: Cross multiply
    66,494.26x = 91,765.59 × 38,201.77
  4. Step 4: Simplify right side
    66,494.26x = 3,505,607,963.09
  5. Step 5: Solve for x
    x = 3,505,607,963.09/66,494.26
  6. Step 6: Final answer
    x = 52,720.46

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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.