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Finding the Fourth Proportional to 66,194.94, 91,349.56 and 35,980.25

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Solution

The fourth proportional to 66,194.94, 91,349.56 and 35,980.25 is: 49,653.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,194.94 : 91,349.56 = 35,980.25 : x
  2. Step 2: Convert to fraction form
    66,194.94/91,349.56 = 35,980.25/x
  3. Step 3: Cross multiply
    66,194.94x = 91,349.56 × 35,980.25
  4. Step 4: Simplify right side
    66,194.94x = 3,286,780,466.37
  5. Step 5: Solve for x
    x = 3,286,780,466.37/66,194.94
  6. Step 6: Final answer
    x = 49,653.05

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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.